Numbers & Operations

Problem 8701

¿Cuánto tiempo tarda tu corazón en latir 1000 veces? Si cuentas desde el 1 de enero de 2000, ¿cuándo llegarás a un millón y a un billón de latidos? Estima tu frecuencia cardiaca en latidos por minuto, hora y día.

See Solution

Problem 8702

Calcula el tiempo para 1000 latidos. Si empiezas a contar a la medianoche del 1 de enero de 2000, ¿cuándo es el latido 1,000,000 y 1,000,000,000? Estima tu frecuencia cardíaca en latidos por minuto, hora y día.

See Solution

Problem 8703

¿Cuánto tiempo tarda tu corazón en latir 1000 veces? ¿Cuándo contarías el latido 1,000,000 y 1,000,000,000? Estima tu frecuencia.

See Solution

Problem 8704

Convert $0.386 \mathrm{~g}$ to milligrams using the metric system.

See Solution

Problem 8705

Calculate the product: $0.2 \times 0.8=$

See Solution

Problem 8706

Calculate $7,854 \div 21$ .

See Solution

Problem 8707

Round the number $5430$ to the closest thousand.

See Solution

Problem 8708

Calculate $0.085631 \times 1.32$ and round the result to the correct number of significant figures.

See Solution

Problem 8709

Count the significant figures in the number $1.006 \times 10^{7}$ .

See Solution

Problem 8710

Solve: $\frac{5}{8} \div \frac{3}{4}$

See Solution

Problem 8711

Solve: $26.04 \div -6.2$

See Solution

Problem 8712

Find the density of a metal piece with mass 30.4571 g and water volume change from $6.45 \mathrm{~cm}^{3}$ to $9.90 \mathrm{~cm}^{3}$ .

See Solution

Problem 8713

Convert 23.2 kilometers to centimeters using the conversion factor: 1 km = 100,000 cm.

See Solution

Problem 8714

Convert the improper fraction $\frac{18}{3}$ to a mixed number and simplify.

See Solution

Problem 8715

A tree grew 2.62 feet in 4 years. What is its annual growth rate in feet per year?

See Solution

Problem 8716

Tyler took 36 pictures and puts 6 on each page. How many pages does he need? Calculate: $36 \div 6$ .

See Solution

Problem 8717

Hank cut blocks that are $2 \frac{3}{8}$ feet long. What is the total length of 8 blocks laid end-to-end?

See Solution

Problem 8718

Hank cut blocks of wood $2 \frac{3}{8}$ feet long. What is the total length of 8 blocks laid end-to-end?

See Solution

Problem 8719

Mac bought 48 lbs of hamburger, using bags that hold $2 \frac{2}{3}$ lbs each. How many bags did he use?

See Solution

Problem 8720

Simplify the expression: $|-4-2|(-7)+2^{2}$ . What is the result?

See Solution

Problem 8721

Simplify the expression: $9 - 2^{2} + 3 - (7 - 9) =$ (Provide your answer.)

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Problem 8722

Find the set of numbers that are both rational and irrational. Choose the correct set: A. $\varnothing$ B. $\{0\}$ C. $\{\sqrt{x}, \sqrt{-x}\}$ D. $\{0,1,2,3,4,5, \ldots\}$

See Solution

Problem 8723

Graph the set $\{-3,-2,0,3,7\}$ on a number line and mark -3.

See Solution

Problem 8724

Calculate the total mass of a beaker (35.4478 g ± 0.0002 g) and two metals (3.1162 g ± 0.0002 g, 4.6617 g ± 0.0002 g) with error.

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Problem 8725

Identify natural numbers from the set: $\{-\frac{3}{5}, 1.\overline{4}, \sqrt{2}, 0, -4\frac{1}{4}, 12, -15, \pi\}$ . Options: A. 12, B. $-4\frac{1}{4}$ , C. -15, D. 0, E. $\pi$ , F. $1.\overline{4}$ , G. $\sqrt{2}$ , H. $-\frac{3}{5}$ .

See Solution

Problem 8726

Calculate the mass of water added to a beaker that weighed $26.2411 \mathrm{~g} \pm 0.0002 \mathrm{~g}$ and now weighs $33.1932 \mathrm{~g} \pm 0.0002 \mathrm{~g}$ .

See Solution

Problem 8727

Find the unit rate (price per cup) for popcorn in the small, medium, and large combos at Carmike Cinema.

See Solution

Problem 8728

See Solution

Problem 8729

Convert $0.0001 \mathrm{dg}$ to $\mathrm{pg}$ .

See Solution

Problem 8730

Convert $9.87 \times 10^{-30} \mathrm{ml}$ to $\mathrm{Tl}$ .

See Solution

Problem 8731

Convert $0.0001 \mathrm{dg}$ to picograms (pg) using the SI unit conversion method.

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Problem 8732

Convert $10 \mathrm{~km}$ to feet using $1 \mathrm{~m} = 3.28084 \mathrm{ft}$ . What is the result?

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Problem 8733

A newborn elephant weighs $225 \mathrm{lb}$ . Convert this to kilograms using $1 \mathrm{~kg}=2.2 \mathrm{lb}$ .

See Solution

Problem 8734

Ein Händler kauft $1 \frac{1}{8} t$ Erdnüsse. $12\%$ sind Schale, $88\%$ Nüsse. Nach Röstung kommen $10 \mathrm{~kg}$ Salz dazu.
a) Wie viel kg Nüsse (mit Salz) sind verkaufbar? b) $\frac{2}{5}$ der Nüsse gehen nach Österreich, $\frac{3}{8}$ nach Europa. Wie viel bleibt in Deutschland und wie viel kg ist das?

See Solution

Problem 8735

Ein Händler kauft $1 \frac{1}{8} t$ Erdnüsse. $12\%$ sind Schale, $88\%$ Nüsse. Nach Röstung kommen $10 \mathrm{~kg}$ Salz hinzu. a) Wie viel kg Nüsse (mit Salz) sind verkaufbar? b) Welcher Bruchteil und wie viel kg bleiben in Deutschland, wenn $\frac{2}{5}$ nach Österreich und $\frac{3}{8}$ ins restliche Europa gehen?

See Solution

Problem 8736

Alisha buys 1.5 kg onions, 3.6 kg potatoes, 0.6 kg radish, and 1.2 kg apples. Calculate her total cost.

See Solution

Problem 8737

Alisha buys 1.5 kg onions, 3.6 kg potatoes, 0.6 kg radish, and 1.2 kg apples. Calculate her total cost.

See Solution

Problem 8738

Solve the equations: $T-4-25=$ , $37-12=$ , $17-18=$ , $10-2=$ , $-11+4=$ , $-30-20=$ , $-1+8=$ .

See Solution

Problem 8739

Find how many days until the field hockey team (every 4 days) and soccer team (every 6 days) share the field again. Use LCM.

See Solution

Problem 8740

Find the minimum packs of soccer balls (4 per pack) needed to equalize tennis balls (18 per pack) and golf balls (12 per pack).

See Solution

Problem 8741

Sierra baked 80 chocolate chip cookies and 64 sugar cookies. What is the greatest number of containers for equal distribution?

See Solution

Problem 8742

Calculate $10 \times 10$ using the equation: $C \times 10 + - \times 10 = 10 \times 10$ . What is $10 \times 10$ ?

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Problem 8743

Identify the irrational number from the options: A. $\sqrt{7}$ , B. -2.7, C. $\frac{2}{7}$ , D. $2 . \overline{7}$ .

See Solution

Problem 8744

Find the simplified fraction for the decimal $0.32$ . Options: A. $\frac{8}{25}$ B. $\frac{16}{50}$ C. $\frac{3}{2}$ D. $\frac{32}{100}$

See Solution

Problem 8745

Identify the number types for $\frac{7}{3}$ . Options: A. Real, irrational B. Real, rational C. Rational, integer D. Real, integer

See Solution

Problem 8746

What is the decimal equivalent of $\frac{16}{3}$ ? A. $5.\overline{3}$ B. 5.3 C. 16.3 D. 0.1875

See Solution

Problem 8747

What is the fraction for the repeating decimal $0.\overline{6}$ ? A. $\frac{1}{3}$ B. $\frac{66}{100}$ C. $\frac{2}{3}$ D. $\frac{6}{10}$

See Solution

Problem 8748

Find which number is closest to $10$ : A. $\sqrt{98}$ , B. $\sqrt{99}$ , C. $\sqrt{102}$ , D. $\sqrt{97}$ .

See Solution

Problem 8749

Marlene estimates $\sqrt{42}$ . What should she do next? A. Square numbers between 6.5 and 6.6. B. Estimate 6.50. C. Average 6.4 and 6.5. D. Square numbers between 6.4 and 6.5.

See Solution

Problem 8750

Find the value of $3^{-2}$ . A. $\frac{1}{9}$ B. -6 C. $-\frac{1}{9}$ D. -9

See Solution

Problem 8751

Which number is closest to $7$ ? A. $\sqrt{51}$ B. $\sqrt{46}$ C. $\sqrt{50}$ D. $\sqrt{47}$

See Solution

Problem 8752

Calculate $60 \div 2(3+7)$ .

See Solution

Problem 8753

Calculate the total cost for 3 meals at \$8.99, 2 sodas at \$1.50, and 1 tea at \$1.25. Evaluate the expression.

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Problem 8754

Aisha bought 6 notebooks at \$0.39, 2 pencil packs at \$0.79, and a binder at \$1.99. Find the total spent.

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Problem 8755

A surveying chain with 1000 links measures $0.0333 \mathrm{~km}$ . Find the length of one link in cm as a decimal.

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Problem 8756

Evaluate $12^{2}-3\left[4\left(\frac{1}{4}\right)-\left(1^{8}\right)\right]$ .

See Solution

Problem 8757

A meal costs \ $46.80. What is the total cost with a$ 15\%$ tip? The total cost is \$

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Problem 8758

In a class of 840 students, how many would rank flexible hours as their top benefit if $42\%$ prefer it? Round to nearest whole number.

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Problem 8759

Which situation matches the expression $-20 + 62$ ? a) 20 m above sea level to 42 m above sea level. b) 20 m below sea level to 42 m above sea level.

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Problem 8760

Brenda's bank balance was $-\$ 20$ . After a \$10 fee for the negative balance, what is her new balance?

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Problem 8761

Did Mr. Oldham correctly solve $3 - (-5)$ to get -8? If not, what is the right answer and his mistake?

See Solution

Problem 8762

Calculate: $8 - (-16) =$

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Problem 8763

Calculate the sum: $4.520 + 18.03 + 0.2 = ?$

See Solution

Problem 8764

Evaluate $(-5)^{2}$ .

See Solution

Problem 8765

Organize these transactions by date, then calculate your balance after each:
1. Apr 29: balance \$237.47
2. Apr 29: write check \#115 for \$18.00
3. Apr 30: paycheck \$62.75
4. May 4: deposit check from grandma \$25.00
5. May 5: ATM withdrawal \$20 + \$3 fee
6. May 12: write check \#116 for \$51.16
7. May 10: receive \$20 from sister
8. May 12: ATM withdrawal \$525
9. May 16: deposit paycheck \$265.65
10. May 12: deposit birthday check \$35 (received on May 12, deposited on May 17)

See Solution

Problem 8766

Calculate the expression using the order of operations: $-4^{2}+6[12 \div(5-9)]$ . What is the result?

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Problem 8767

Convert the number $2.58 \times 10^{-3}$ to decimal notation.

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Problem 8768

Divide and simplify: $\frac{5}{2} \div \frac{1}{2}=?$

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Problem 8769

What is the absolute value of -5.1? Calculate $|-5.1|$ .

See Solution

Problem 8770

Convert 355,000 to scientific notation. $355,000 =$

See Solution

Problem 8771

Convert 0.000006 and 300 to scientific notation, then find and express the quotient in scientific notation.
0.000006 =
300 =
$\frac{0.000006}{300}=$

See Solution

Problem 8772

Calculate the product of $(3) \cdot (6.12) \cdot 0.3$ .

See Solution

Problem 8773

Simplify $(-3)^{2} + (-4)(-9)$ .

See Solution

Problem 8774

Convert 3.4 meters to centimeters. How many centimeters is that? (Use the conversion: 1 m = 100 cm)

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Problem 8775

Which two expressions yield a value greater than 1? A) $\frac{2}{3} \times 5$ , B) $\frac{1}{3} \div \frac{2}{5}$ , C) $\frac{5}{3} \times \frac{1}{8}$ , D) $\frac{3}{4} \times \frac{2}{3}$ , E) $\frac{2}{3} \div \frac{2}{5}$ .

See Solution

Problem 8776

Calculate $10 \times 10$ .

See Solution

Problem 8777

Identify the valid U.S. currency denomination: A. \$1000, B. \$5000, C. \$500, D. \$100.

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Problem 8778

Mavis has 33 nickels, 67 dimes, 19 quarters, and 14 fifty-cent pieces. What is her total money? A. \$20.10 B. \$18.40 C. \$27.30 D. \$21.35

See Solution

Problem 8779

Royce started with \$ 171.26. After deposits of \$ 60.76, \$ 29.79, \$ 89.31 and withdrawals of \$ 14.82, \$ 46.79, \$ 55.52, how much does he have now?

See Solution

Problem 8780

Cynthia buys a heater for \$181.25. She pays with 2 \$50 bills, 7 \$10 bills, and 12 \$1 bills. What's her change?

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Problem 8781

Cynthia buys a heater for \$181.25, pays with 2 \$50, 7 \$10, and 12 \$1 bills. How much change does she get?

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Problem 8782

Dione has 3 rolls of 50 pennies, 4 rolls of 40 nickels, 5 rolls of 50 dimes, and 6 rolls of 40 quarters. Total value?

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Problem 8783

Identify which of these values can be a probability: $\sqrt{7}$ , $-3$ , $\sqrt{\frac{1}{7}}$ , 0.866, $\frac{4}{31}$ .

See Solution

Problem 8784

Identify which value cannot be a probability: $\sqrt{\frac{1}{10}}$ , 2, 1.3662, $\frac{21}{40}$ , $\sqrt{3}$ .

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Problem 8785

Calculate the state income tax for a salary of \$60,000 using the given progressive tax rates. Round to the nearest dollar.

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Problem 8786

What is the probability of rolling a "4" or a "5" on a 6-sided die? Provide your answer as a fraction or decimal (3 digits).

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Problem 8787

The employee's biweekly insurance cost is $\$[6,760 \times 0.3 / 26]$ .

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Problem 8788

The employee pays 20% of \$2,470 annually. What is the biweekly deduction from their paycheck? Biweekly Insurance Cost \$[?]

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Problem 8789

Determine if the sum $\frac{8}{11}+\sqrt{2}$ is rational or irrational.

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Problem 8790

Determine if the sum $\frac{2}{9}+\frac{9}{11}$ is rational or irrational.

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Problem 8791

Determine if the product $\sqrt{12} \times \frac{3}{8}$ is rational or irrational.

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Problem 8792

Determine if the product is rational or irrational: $-\frac{1}{5} \times \frac{1}{3}$ .

See Solution

Problem 8793

Calculate $\frac{9}{10}-\frac{4}{5}$ .

See Solution

Problem 8794

Kara donates \$ 18.18 monthly for 12 months. Total donation after 12 months? A. \$ 217.06 B. \$ 217.16 C. \$ 218.06 D. \$ 218.16

See Solution

Problem 8795

Mr. Coletti made $4 \frac{1}{3}$ pounds of pudding. If he served $\frac{1}{6}$ pound portions, how many portions did he serve?

See Solution

Problem 8796

What is $4\%$ of $1.36 \times 10^{4}$ ? Options: A. 340, B. 544, C. 3,400, D. 5,440, E. 54,400.

See Solution

Problem 8797

Find the least common denominator of $\frac{4}{35}, \frac{1}{77}, \frac{3}{22}$ . A. 110 B. 770 C. 2,695 D. 8,470 E. \$ 9,290

See Solution

Problem 8798

True or False: $7 \times 92$ equals $(7 \times 90) + (7 \times 2)$ ?

See Solution

Problem 8799

Simplify the expression $\frac{3}{7} \times \frac{11}{9}$ .

See Solution

Problem 8800

Calculate the expression step-by-step: $\frac{6+5 \cdot 4}{6+7}$ . What is the result?

See Solution

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Numbers & Operations

Problem 8701

¿Cuánto tiempo tarda tu corazón en latir 1000 veces? Si cuentas desde el 1 de enero de 2000, ¿cuándo llegarás a un millón y a un billón de latidos? Estima tu frecuencia cardiaca en latidos por minuto, hora y día.

Problem 8702

Calcula el tiempo para 1000 latidos. Si empiezas a contar a la medianoche del 1 de enero de 2000, ¿cuándo es el latido 1,000,000 y 1,000,000,000? Estima tu frecuencia cardíaca en latidos por minuto, hora y día.

Problem 8703

¿Cuánto tiempo tarda tu corazón en latir 1000 veces? ¿Cuándo contarías el latido 1,000,000 y 1,000,000,000? Estima tu frecuencia.

Problem 8704

Convert 0.386 g0.386 \mathrm{~g}0.386 g to milligrams using the metric system.

Problem 8705

Calculate the product: 0.2×0.8=0.2 \times 0.8=0.2×0.8=

Problem 8706

Calculate 7,854÷217,854 \div 217,854÷21.

Problem 8707

Round the number 543054305430 to the closest thousand.

Problem 8708

Calculate 0.085631×1.320.085631 \times 1.320.085631×1.32 and round the result to the correct number of significant figures.

Problem 8709

Count the significant figures in the number 1.006×1071.006 \times 10^{7}1.006×107.

Problem 8710

Solve: 58÷34\frac{5}{8} \div \frac{3}{4}85​÷43​

Problem 8711

Solve: 26.04÷−6.226.04 \div -6.226.04÷−6.2

Problem 8712

Find the density of a metal piece with mass 30.4571 g and water volume change from 6.45 cm36.45 \mathrm{~cm}^{3}6.45 cm3 to 9.90 cm39.90 \mathrm{~cm}^{3}9.90 cm3.

Problem 8713

Convert 23.2 kilometers to centimeters using the conversion factor: 1 km = 100,000 cm.

Problem 8714

Convert the improper fraction 183\frac{18}{3}318​ to a mixed number and simplify.

Problem 8715

A tree grew 2.62 feet in 4 years. What is its annual growth rate in feet per year?

Problem 8716

Tyler took 36 pictures and puts 6 on each page. How many pages does he need? Calculate: 36÷636 \div 636÷6.

Problem 8717

Hank cut blocks that are 2382 \frac{3}{8}283​ feet long. What is the total length of 8 blocks laid end-to-end?

Problem 8718

Hank cut blocks of wood 2382 \frac{3}{8}283​ feet long. What is the total length of 8 blocks laid end-to-end?

Problem 8719

Mac bought 48 lbs of hamburger, using bags that hold 2232 \frac{2}{3}232​ lbs each. How many bags did he use?

Problem 8720

Simplify the expression: ∣−4−2∣(−7)+22|-4-2|(-7)+2^{2}∣−4−2∣(−7)+22. What is the result?

Problem 8721

Simplify the expression: 9−22+3−(7−9)=9 - 2^{2} + 3 - (7 - 9) = 9−22+3−(7−9)= (Provide your answer.)

Problem 8722

Find the set of numbers that are both rational and irrational. Choose the correct set: A. ∅\varnothing∅ B. {0}\{0\}{0} C. {x,−x}\{\sqrt{x}, \sqrt{-x}\}{x​,−x​} D. {0,1,2,3,4,5,…}\{0,1,2,3,4,5, \ldots\}{0,1,2,3,4,5,…}

Problem 8723

Graph the set {−3,−2,0,3,7}\{-3,-2,0,3,7\}{−3,−2,0,3,7} on a number line and mark -3.

Problem 8724

Calculate the total mass of a beaker (35.4478 g ± 0.0002 g) and two metals (3.1162 g ± 0.0002 g, 4.6617 g ± 0.0002 g) with error.

Problem 8725

Problem 8726

Calculate the mass of water added to a beaker that weighed 26.2411 g±0.0002 g26.2411 \mathrm{~g} \pm 0.0002 \mathrm{~g}26.2411 g±0.0002 g and now weighs 33.1932 g±0.0002 g33.1932 \mathrm{~g} \pm 0.0002 \mathrm{~g}33.1932 g±0.0002 g.

Problem 8727

Find the unit rate (price per cup) for popcorn in the small, medium, and large combos at Carmike Cinema.

Problem 8728

Problem 8729

Convert 0.0001dg0.0001 \mathrm{dg}0.0001dg to pg\mathrm{pg}pg.

Problem 8730

Convert 9.87×10−30ml9.87 \times 10^{-30} \mathrm{ml}9.87×10−30ml to Tl\mathrm{Tl}Tl.

Problem 8731

Convert 0.0001dg0.0001 \mathrm{dg}0.0001dg to picograms (pg) using the SI unit conversion method.

Problem 8732

Convert 10 km10 \mathrm{~km}10 km to feet using 1 m=3.28084ft1 \mathrm{~m} = 3.28084 \mathrm{ft}1 m=3.28084ft. What is the result?

Problem 8733

A newborn elephant weighs 225lb225 \mathrm{lb}225lb. Convert this to kilograms using 1 kg=2.2lb1 \mathrm{~kg}=2.2 \mathrm{lb}1 kg=2.2lb.

Problem 8734

Problem 8735

Problem 8736

Alisha buys 1.5 kg onions, 3.6 kg potatoes, 0.6 kg radish, and 1.2 kg apples. Calculate her total cost.

Problem 8737

Alisha buys 1.5 kg onions, 3.6 kg potatoes, 0.6 kg radish, and 1.2 kg apples. Calculate her total cost.

Problem 8738

Solve the equations: T−4−25=T-4-25=T−4−25=, 37−12=37-12=37−12=, 17−18=17-18=17−18=, 10−2=10-2=10−2=, −11+4=-11+4=−11+4=, −30−20=-30-20=−30−20=, −1+8=-1+8=−1+8=.

Problem 8739

Find how many days until the field hockey team (every 4 days) and soccer team (every 6 days) share the field again. Use LCM.

Problem 8740

Find the minimum packs of soccer balls (4 per pack) needed to equalize tennis balls (18 per pack) and golf balls (12 per pack).

Problem 8741

Sierra baked 80 chocolate chip cookies and 64 sugar cookies. What is the greatest number of containers for equal distribution?

Problem 8742

Convert $0.386 \mathrm{~g}$ to milligrams using the metric system.

Calculate the product: $0.2 \times 0.8=$

Calculate $7,854 \div 21$ .

Round the number $5430$ to the closest thousand.

Calculate $0.085631 \times 1.32$ and round the result to the correct number of significant figures.

Count the significant figures in the number $1.006 \times 10^{7}$ .

Solve: $\frac{5}{8} \div \frac{3}{4}$

Solve: $26.04 \div -6.2$

Find the density of a metal piece with mass 30.4571 g and water volume change from $6.45 \mathrm{~cm}^{3}$ to $9.90 \mathrm{~cm}^{3}$ .

Convert the improper fraction $\frac{18}{3}$ to a mixed number and simplify.

Tyler took 36 pictures and puts 6 on each page. How many pages does he need? Calculate: $36 \div 6$ .

Hank cut blocks that are $2 \frac{3}{8}$ feet long. What is the total length of 8 blocks laid end-to-end?

Hank cut blocks of wood $2 \frac{3}{8}$ feet long. What is the total length of 8 blocks laid end-to-end?

Mac bought 48 lbs of hamburger, using bags that hold $2 \frac{2}{3}$ lbs each. How many bags did he use?

Simplify the expression: $|-4-2|(-7)+2^{2}$ . What is the result?

Simplify the expression: $9 - 2^{2} + 3 - (7 - 9) =$ (Provide your answer.)

Find the set of numbers that are both rational and irrational. Choose the correct set: A. $\varnothing$ B. $\{0\}$ C. $\{\sqrt{x}, \sqrt{-x}\}$ D. $\{0,1,2,3,4,5, \ldots\}$

Graph the set $\{-3,-2,0,3,7\}$ on a number line and mark -3.

Calculate the mass of water added to a beaker that weighed $26.2411 \mathrm{~g} \pm 0.0002 \mathrm{~g}$ and now weighs $33.1932 \mathrm{~g} \pm 0.0002 \mathrm{~g}$ .

Convert $0.0001 \mathrm{dg}$ to $\mathrm{pg}$ .

Convert $9.87 \times 10^{-30} \mathrm{ml}$ to $\mathrm{Tl}$ .

Convert $0.0001 \mathrm{dg}$ to picograms (pg) using the SI unit conversion method.

Convert $10 \mathrm{~km}$ to feet using $1 \mathrm{~m} = 3.28084 \mathrm{ft}$ . What is the result?

A newborn elephant weighs $225 \mathrm{lb}$ . Convert this to kilograms using $1 \mathrm{~kg}=2.2 \mathrm{lb}$ .

Solve the equations: $T-4-25=$ , $37-12=$ , $17-18=$ , $10-2=$ , $-11+4=$ , $-30-20=$ , $-1+8=$ .

Calculate $10 \times 10$ using the equation: $C \times 10 + - \times 10 = 10 \times 10$ . What is $10 \times 10$ ?

Identify the irrational number from the options: A. $\sqrt{7}$ , B. -2.7, C. $\frac{2}{7}$ , D. $2 . \overline{7}$ .

Find the simplified fraction for the decimal $0.32$ . Options: A. $\frac{8}{25}$ B. $\frac{16}{50}$ C. $\frac{3}{2}$ D. $\frac{32}{100}$

Identify the number types for $\frac{7}{3}$ . Options: A. Real, irrational B. Real, rational C. Rational, integer D. Real, integer

What is the decimal equivalent of $\frac{16}{3}$ ? A. $5.\overline{3}$ B. 5.3 C. 16.3 D. 0.1875

What is the fraction for the repeating decimal $0.\overline{6}$ ? A. $\frac{1}{3}$ B. $\frac{66}{100}$ C. $\frac{2}{3}$ D. $\frac{6}{10}$

Find which number is closest to $10$ : A. $\sqrt{98}$ , B. $\sqrt{99}$ , C. $\sqrt{102}$ , D. $\sqrt{97}$ .

Marlene estimates $\sqrt{42}$ . What should she do next? A. Square numbers between 6.5 and 6.6. B. Estimate 6.50. C. Average 6.4 and 6.5. D. Square numbers between 6.4 and 6.5.

Find the value of $3^{-2}$ . A. $\frac{1}{9}$ B. -6 C. $-\frac{1}{9}$ D. -9

Which number is closest to $7$ ? A. $\sqrt{51}$ B. $\sqrt{46}$ C. $\sqrt{50}$ D. $\sqrt{47}$

Calculate $60 \div 2(3+7)$ .

A surveying chain with 1000 links measures $0.0333 \mathrm{~km}$ . Find the length of one link in cm as a decimal.

Evaluate $12^{2}-3\left[4\left(\frac{1}{4}\right)-\left(1^{8}\right)\right]$ .

A meal costs \ $46.80. What is the total cost with a$ 15\%$ tip? The total cost is \$

In a class of 840 students, how many would rank flexible hours as their top benefit if $42\%$ prefer it? Round to nearest whole number.

Which situation matches the expression $-20 + 62$ ? a) 20 m above sea level to 42 m above sea level. b) 20 m below sea level to 42 m above sea level.

Brenda's bank balance was $-\$ 20$ . After a \$10 fee for the negative balance, what is her new balance?

Did Mr. Oldham correctly solve $3 - (-5)$ to get -8? If not, what is the right answer and his mistake?

Calculate: $8 - (-16) =$

Calculate the sum: $4.520 + 18.03 + 0.2 = ?$

Evaluate $(-5)^{2}$ .

Calculate the expression using the order of operations: $-4^{2}+6[12 \div(5-9)]$ . What is the result?

Convert the number $2.58 \times 10^{-3}$ to decimal notation.

Divide and simplify: $\frac{5}{2} \div \frac{1}{2}=?$

What is the absolute value of -5.1? Calculate $|-5.1|$ .

Convert 355,000 to scientific notation. $355,000 =$

Convert 0.000006 and 300 to scientific notation, then find and express the quotient in scientific notation.
0.000006 =
300 =
$\frac{0.000006}{300}=$

Calculate the product of $(3) \cdot (6.12) \cdot 0.3$ .

Simplify $(-3)^{2} + (-4)(-9)$ .