Decimals

Problem 1

Ако $\frac{0,024 \cdot 0,001}{0,04 \cdot 6}=x \cdot 10^{y}$ , намерете $x+y$ .

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Problem 2

What is the sum of $42.6 + 0.45 + 30.22$ ? Provide your answer.

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Problem 3

What is the value of 7 in the product of 2.7 and $10^{2}$ ? A. 0.007 B. 0.07 C. 7 D. 70

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Problem 4

Round 2.078 to the hundredths place. Options: M. 2.10, P. 2.08, R. 2.07, S. 2.00.

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Problem 5

Choose three numbers less than 12.13 from the options: A. 12.146 B. 12.025 C. 12.5 D. 12.103 E. 12.072.

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Problem 6

A child weighing 80 pounds needs Phenytoin $60 \mathrm{mg}$ every 8 hours. How many mls per dose? (Round to 1 decimal place)

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Problem 7

Circle the digit in the hundredths place of 8,656.175.

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Problem 8

Rosa took 15.6 min to the store and 18.5 min to return. How much longer was her return trip?

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Problem 9

Circle the digit in the hundredths place of $3,656.175$ .

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Problem 10

Calculate $3.92 \times \frac{1}{1.2}$ . What is the result?

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Problem 11

Calculate $3.62 \times 7$ .

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Problem 12

Round 25.691 to the nearest whole number. What is the greatest place value?

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Problem 13

What is the area of a park if it's halfway between 2.4 and 2.5 acres? Calculate: $\frac{2.4 + 2.5}{2}$ .

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Problem 14

What is the maximum and minimum amount of money that rounds to \$105.40 when rounded to the nearest dime?

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Problem 15

Order the transportation modes used by students to school: $\frac{19}{50}$ in family vehicles, $\frac{5}{12}$ on buses, and $0.12$ on bikes.

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Problem 16

Calculate the product of 12.5 and 163.2. What is $12.5 \times 163.2$ ?

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Problem 17

Calculate $94.9 - 41.871$ .

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Problem 18

Calculate $809.144 - 15.96$ .

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Problem 19

Calculate $309.141 - 15.96$ .

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Problem 20

Calculate: $\sqrt{\frac{1}{0.01}-8^{2}}$

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Problem 21

Calculate $809.144 - 15.96$ .

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Problem 22

Convert these fractions to decimals: $\frac{4}{20}, \frac{2}{20}, \frac{4}{10}, \frac{17}{20}, \frac{15}{20}, \frac{4}{5}, \frac{10}{20}, \frac{5}{20}, \frac{1}{2}, \frac{16}{20}, \frac{19}{20}, \frac{13}{20}$ .

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Problem 23

หาผลหารของ $2.8 \div 4$

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Problem 24

Convert 4.37 litres to cubic centimetres. Use the conversion $1 \text{ litre} = 1000 \text{ cm}^3$ .

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Problem 25

Al simplificar la expresión $\sqrt{0.0001 \times 128}$ , ¿cuál es el resultado?

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Problem 26

Convierte la masa de $0.000320 \mathrm{~kg}$ a notación científica. ¿Cuál es la opción correcta? a. $3.2 \times 10^{-4} \mathrm{~kg}$ b. $3.20 \times 10^{-3} \mathrm{~kg}$ c. $3.2 \times 10^{-6} \mathrm{~kg}$ d. $3.20 \times 10^{-5} \mathrm{~kg}$

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Problem 27

Convierte $274518 \mathrm{~cm}^{3}$ a $\mathrm{m}^{3}$ y elige la respuesta correcta: a. $0,274518 \mathrm{~m}^{3}$ b. $0,00274518 \mathrm{~m}^{3}$ c. $0,0274518 \mathrm{~m}^{3}$ d. $0,000274518 \mathrm{~m}^{3}$

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Problem 28

Find the largest number in these sets: 1) {1.12, -18, -1} 2) {0, -10, 10} 3) {-4, -5.5, -5}

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Problem 29

The weight of powder is $84.2 \mathrm{~g}$ , rounded to the nearest $0.1 \mathrm{~g}$ . Find the range of actual weight $W$ .

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Problem 30

Calculate the moles of sodium in $30.7 \mathrm{~g}$ . Provide the answer with the correct significant digits.

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Problem 31

A company lost \$2.5 million annually for 4 years and gained \$2.8 million annually for 5 years. Find the total gain or loss.

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Problem 32

Calculate the sum: $20.35 + 5.5 =$

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Problem 33

Calculate $20.35 \div 5.5$ .

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Problem 34

Calculate the product of 47.75 and 41.71. What is $47.75 \times 41.71$ ?

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Problem 35

Calculate the product of 96.45 and 83.16. What is $96.45 \times 83.16$ ?

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Problem 36

Calculate the product of 74.25 and 34.19. What is $74.25 \times 34.19$ ?

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Problem 37

Calculate the product of 15.33 and 88.64. What is $15.33 \times 88.64$ ?

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Problem 38

Multiply 15.332 by 88.64. What is the result?

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Problem 39

Multiply 61.78 by 80.84. What is the result?

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Problem 40

Calculate the product of 91.78 and 80.84. What is $91.78 \times 80.84$ ?

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Problem 41

Calculate $10^{-5} \cdot 11.13$ .

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Problem 42

Calculate the value of $\sqrt{1.67}$ .

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Problem 43

Determine the sign of the sum $46.2 + 112.3$ .

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Problem 44

What is the sign of the sum $-567.45 + 567.45$ ? Choose 1 answer.

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Problem 45

Determine the sign of the expression $-1.69 + (-1.69)$ .

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Problem 46

Determine the sign of the expression $-49.8 + 61.2$ .

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Problem 47

Determine the sign of the expression $-567.45 + 567.45$ .

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Problem 48

An aircraft flies at 210 mph for 2.25 hours, then 180 mph for 0.42 hours. Find the total distance traveled.

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Problem 49

The weight of a powder is $84.2 \mathrm{~g}$ , rounded to the nearest $0.1 \mathrm{~g}$ . Determine the possible range for $W$ .

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Problem 50

Calculate the cost of $12 \mathrm{~kg}$ of lamb chops priced at R14,25/kg.

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Problem 51

Round the decimal number $2.55$ to the nearest tenth.

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Problem 52

Calculate the value of $\frac{4.2 \cdot 6}{84}$ .

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Problem 53

Gabi converts 0.000098 to scientific notation. What is the missing power of 10 in $9.8 \times 10^{?}$ ? a. 5 b. -5 c. 6 d. -6

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Problem 54

Tính các biểu thức sau: a) $A=32,125-(6,325+12,125)-(37+13,675)$ ; b) $B=4,75+\left(\frac{-1}{2}\right)^{3}+0,5^{2}-3 \cdot \frac{-3}{8}$ ; c) $C=2021,2345 \cdot 2020,1234+2021,2345 \cdot(-2020,123$

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Problem 55

Die prys van petrol is R 26,74 per liter. Hoeveel liter kan jy in die polo Vivo se tenk sit met R 104,40?

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Problem 56

Round the following numbers: 1) 29 to nearest 10 2) 35 to nearest 10 3) 12.87 to nearest tenth 4) 3.2631 to nearest hundredth 5) 12.1137 to three decimal places 6) 108.6 to nearest whole number 7) 265.841 to nearest hundred 8) 65.456 to two decimal places 9) 24.555 to two decimal places 10) 3.6744 to three decimal places

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Problem 57

Calculate the value of $\frac{0.6}{0.02}$ .

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Problem 58

Calculate the value of $\frac{0.6}{0.02}$ .

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Problem 59

Count the significant figures in these numbers: 24.06, 0.4000, 123, 0.00071, 23.0023, 3000, 147.82001, 0.444.

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Problem 60

1) Find the tenths digit of 22.824. 2) Find the units digit of 881.85. 3) Find the hundredths digit of 22.824. 4) Determine the place value of 3 in 29.213. 5) Find the tenths digit of 17.31. 6) Determine the place value of 6 in 86.831. 7) Identify the position of the smallest digit in 99.715. 8) Identify the position of the largest digit in 3163.212.

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Problem 61

Find the tenths digit of 22.824, units digit of 881.85, hundredths digit of 22.824, and place value of 3 in 29.213.

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Problem 62

Find the place value of 3 in 29.213, the tenths digit in 17.31, the place value of 6 in 86.831, and the position of the smallest digit in 99.715.

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Problem 63

Round 0.04375 to three significant figures.

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Problem 64

How is 46.8 written in standard form? A. 4.68 B. 46.8 C. 46.03 D. 4.608

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Problem 65

Convert 6.3 meters to centimeters. Use the conversion: 1 meter = 100 centimeters. Answer: $6.3 \times 100 = ?$

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Problem 66

Calculate $17.5 - 6.873$ .

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Problem 67

A 60 watt bulb uses 0.06 kW/h. How many kW does it use if left on for 15 days? Calculate: $0.06 \times 24 \times 15$ .

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Problem 68

Calculate 528.77 - 41.68.

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Problem 69

Find the sum of 93.5 and 8.7: $93.5 + 8.7$ .

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Problem 70

Evaluate the expression: $2.95 + \{3.02 \times (6.125 \div 5.196 - 2.746)\}$ .

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Problem 71

Measure 60 sheets of paper at $8.6 \mathrm{~mm}$ . Find max error and limits for one sheet's thickness.

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Problem 72

Round 12.67 to the nearest tenth. Enter the answer in the $b$ .

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Problem 73

Round 12.67 to the nearest tenth. What is the result?

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Problem 74

Calculate the value of $2.16 \times 10^{4}$ .

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Problem 75

Calculate $754.2 \times 10^{2}$ .

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Problem 76

Jared perdió \ $9.00 en 2 meses, perdiendo la misma cantidad cada mes. ¿Qué significa -4.50 en$ $-9.00 \div 2$ $?

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Problem 77

Multiply -3.8 by -38, -24, and 24. Find the results of:
a. $-3.8 \times -38$
b. $-3.8 \times -24$
c. $-3.8 \times 24$

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Problem 78

Calculate the following expressions: 2) $19.9 \cdot 18 - 19.9 \cdot 16 + 30.1 \cdot 18 - 30.1 \cdot 16$ ; 4) $17.96 \cdot 0.1 - 0.1 \cdot 81.96 + 18 - 30.1 \cdot 16$ ; 6) $3 \frac{2}{5} \cdot 2 \frac{3}{7} \cdot 5 \cdot 7$ .

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Problem 79

Calculate the sum of 12.45 and 3.1.

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Problem 80

Find 15.8 - 7.

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Problem 81

Calculate the sum of $14.576$ and $9.91$ .

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Problem 82

Matf aimed to run 6 miles but only ran 4.65 miles. How much more does he need to run? Calculate: $6 - 4.65$ .

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Problem 83

Write 863.141 in expanded form using place value.

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Problem 84

Samantha bought 4.25 pounds of oranges and 1.82 pounds of apples. How many more pounds of oranges than apples?

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Problem 85

A piece of fabric is $3.9$ meters. Convert this length to centimeters.

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Problem 86

Convert 2.5 tons to pounds using the equation: 2.5 tons $=$ ? pounds.

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Problem 87

Calculate $81.5 \times 71$ .

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Problem 88

Starting at $x_{\mathrm{i}}=4.5 \mathrm{~m}$ , if you displace by $6.2 \mathrm{~m}$ , what is your final position?

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Problem 89

Write the number $7,4404$ and the sum $40,000 + 7,000 + 400 + 40 + 9$ in words.

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Problem 90

Identify the errors in these calculations: $3.4 .1) 2,315 \times 0,045=10,4175$ and $3.4 .2) 2,312+0,0004 S=2,357$ .

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Problem 91

Identify the errors in these calculations: $2,315 \times 0.045$ and $2,312 + 0.00045$ . Correct them.

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Problem 92

Identify and correct the errors in these calculations: (4.1) $2,315 \times 0.045=10.4175$ (4.2) $2,312+0.00045=2.357$

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Problem 93

Josh has the numbers $2.699, 2\frac{3}{10}, 15\%$ . Convert them to 2 decimal places and arrange in ascending order.

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Problem 94

Calculate the value of $-0.8 \div(0.3+-0.1-0.6)$ .

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Problem 95

Identify and correct the misconceptions in these calculations: 1) $2,315 \times 0.045=10.4175$ and 2) $2,312+0.00045=2.357$ .

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Problem 96

Audrey makes \$0.45 per small and \$0.75 per large basket. She made 288 small and 72 large. What's her total pay?

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Problem 97

What is $0.99 \times 3.339$ ?

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Problem 98

Simplify $6.029 + 60.29 + 602.97 + 6029$ . Options: a) 66.98289 b) 669.8289

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Problem 99

Calculate the product of 8.9 and 0.068: $8.9 \times 0.068=$

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Problem 100

Calculate the product of 7.12 and 0.23. What is $7.12 \times 0.23$ ?

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Decimals

Problem 1

Ако 0,024⋅0,0010,04⋅6=x⋅10y\frac{0,024 \cdot 0,001}{0,04 \cdot 6}=x \cdot 10^{y}0,04⋅60,024⋅0,001​=x⋅10y, намерете x+yx+yx+y.

Problem 2

What is the sum of 42.6+0.45+30.2242.6 + 0.45 + 30.2242.6+0.45+30.22? Provide your answer.

Problem 3

What is the value of 7 in the product of 2.7 and 10210^{2}102? A. 0.007 B. 0.07 C. 7 D. 70

Problem 4

Round 2.078 to the hundredths place. Options: M. 2.10, P. 2.08, R. 2.07, S. 2.00.

Problem 5

Choose three numbers less than 12.13 from the options: A. 12.146 B. 12.025 C. 12.5 D. 12.103 E. 12.072.

Problem 6

A child weighing 80 pounds needs Phenytoin 60mg60 \mathrm{mg}60mg every 8 hours. How many mls per dose? (Round to 1 decimal place)

Problem 7

Circle the digit in the hundredths place of 8,656.175.

Problem 8

Rosa took 15.6 min to the store and 18.5 min to return. How much longer was her return trip?

Problem 9

Circle the digit in the hundredths place of 3,656.1753,656.1753,656.175.

Problem 10

Calculate 3.92×11.23.92 \times \frac{1}{1.2}3.92×1.21​. What is the result?

Problem 11

Calculate 3.62×73.62 \times 73.62×7.

Problem 12

Round 25.691 to the nearest whole number. What is the greatest place value?

Problem 13

What is the area of a park if it's halfway between 2.4 and 2.5 acres? Calculate: 2.4+2.52\frac{2.4 + 2.5}{2}22.4+2.5​.

Problem 14

What is the maximum and minimum amount of money that rounds to \$105.40 when rounded to the nearest dime?

Problem 15

Order the transportation modes used by students to school: 1950\frac{19}{50}5019​ in family vehicles, 512\frac{5}{12}125​ on buses, and 0.120.120.12 on bikes.

Problem 16

Calculate the product of 12.5 and 163.2. What is 12.5×163.212.5 \times 163.212.5×163.2?

Problem 17

Calculate 94.9−41.87194.9 - 41.87194.9−41.871.

Problem 18

Calculate 809.144−15.96809.144 - 15.96809.144−15.96.

Problem 19

Calculate 309.141−15.96309.141 - 15.96309.141−15.96.

Problem 20

Calculate: 10.01−82\sqrt{\frac{1}{0.01}-8^{2}}0.011​−82​

Problem 21

Calculate 809.144−15.96809.144 - 15.96809.144−15.96.

Problem 22

Problem 23

หาผลหารของ 2.8÷42.8 \div 42.8÷4

Problem 24

Convert 4.37 litres to cubic centimetres. Use the conversion 1 litre=1000 cm31 \text{ litre} = 1000 \text{ cm}^31 litre=1000 cm3.

Problem 25

Al simplificar la expresión 0.0001×128\sqrt{0.0001 \times 128}0.0001×128​, ¿cuál es el resultado?

Problem 26

Problem 27

Problem 28

Find the largest number in these sets: 1) {1.12, -18, -1} 2) {0, -10, 10} 3) {-4, -5.5, -5}

Problem 29

The weight of powder is 84.2 g84.2 \mathrm{~g}84.2 g, rounded to the nearest 0.1 g0.1 \mathrm{~g}0.1 g. Find the range of actual weight WWW.

Problem 30

Calculate the moles of sodium in 30.7 g30.7 \mathrm{~g}30.7 g. Provide the answer with the correct significant digits.

Problem 31

A company lost \$2.5 million annually for 4 years and gained \$2.8 million annually for 5 years. Find the total gain or loss.

Problem 32

Calculate the sum: 20.35+5.5=20.35 + 5.5 = 20.35+5.5=

Problem 33

Calculate 20.35÷5.520.35 \div 5.520.35÷5.5.

Problem 34

Calculate the product of 47.75 and 41.71. What is 47.75×41.7147.75 \times 41.7147.75×41.71?

Problem 35

Calculate the product of 96.45 and 83.16. What is 96.45×83.1696.45 \times 83.1696.45×83.16?

Problem 36

Calculate the product of 74.25 and 34.19. What is 74.25×34.1974.25 \times 34.1974.25×34.19?

Problem 37

Calculate the product of 15.33 and 88.64. What is 15.33×88.6415.33 \times 88.6415.33×88.64?

Problem 38

Multiply 15.332 by 88.64. What is the result?

Problem 39

Multiply 61.78 by 80.84. What is the result?

Problem 40

Calculate the product of 91.78 and 80.84. What is 91.78×80.8491.78 \times 80.8491.78×80.84?

Problem 41

Calculate 10−5⋅11.1310^{-5} \cdot 11.1310−5⋅11.13.

Ако $\frac{0,024 \cdot 0,001}{0,04 \cdot 6}=x \cdot 10^{y}$ , намерете $x+y$ .

What is the sum of $42.6 + 0.45 + 30.22$ ? Provide your answer.

What is the value of 7 in the product of 2.7 and $10^{2}$ ? A. 0.007 B. 0.07 C. 7 D. 70

A child weighing 80 pounds needs Phenytoin $60 \mathrm{mg}$ every 8 hours. How many mls per dose? (Round to 1 decimal place)

Circle the digit in the hundredths place of $3,656.175$ .

Calculate $3.92 \times \frac{1}{1.2}$ . What is the result?

Calculate $3.62 \times 7$ .

What is the area of a park if it's halfway between 2.4 and 2.5 acres? Calculate: $\frac{2.4 + 2.5}{2}$ .

Order the transportation modes used by students to school: $\frac{19}{50}$ in family vehicles, $\frac{5}{12}$ on buses, and $0.12$ on bikes.

Calculate the product of 12.5 and 163.2. What is $12.5 \times 163.2$ ?

Calculate $94.9 - 41.871$ .

Calculate $809.144 - 15.96$ .

Calculate $309.141 - 15.96$ .

Calculate: $\sqrt{\frac{1}{0.01}-8^{2}}$

Calculate $809.144 - 15.96$ .

หาผลหารของ $2.8 \div 4$

Convert 4.37 litres to cubic centimetres. Use the conversion $1 \text{ litre} = 1000 \text{ cm}^3$ .

Al simplificar la expresión $\sqrt{0.0001 \times 128}$ , ¿cuál es el resultado?

The weight of powder is $84.2 \mathrm{~g}$ , rounded to the nearest $0.1 \mathrm{~g}$ . Find the range of actual weight $W$ .

Calculate the moles of sodium in $30.7 \mathrm{~g}$ . Provide the answer with the correct significant digits.

Calculate the sum: $20.35 + 5.5 =$

Calculate $20.35 \div 5.5$ .

Calculate the product of 47.75 and 41.71. What is $47.75 \times 41.71$ ?

Calculate the product of 96.45 and 83.16. What is $96.45 \times 83.16$ ?

Calculate the product of 74.25 and 34.19. What is $74.25 \times 34.19$ ?

Calculate the product of 15.33 and 88.64. What is $15.33 \times 88.64$ ?

Calculate the product of 91.78 and 80.84. What is $91.78 \times 80.84$ ?

Calculate $10^{-5} \cdot 11.13$ .

Calculate the value of $\sqrt{1.67}$ .

Determine the sign of the sum $46.2 + 112.3$ .

What is the sign of the sum $-567.45 + 567.45$ ? Choose 1 answer.

Determine the sign of the expression $-1.69 + (-1.69)$ .

Determine the sign of the expression $-49.8 + 61.2$ .

Determine the sign of the expression $-567.45 + 567.45$ .

The weight of a powder is $84.2 \mathrm{~g}$ , rounded to the nearest $0.1 \mathrm{~g}$ . Determine the possible range for $W$ .

Calculate the cost of $12 \mathrm{~kg}$ of lamb chops priced at R14,25/kg.

Round the decimal number $2.55$ to the nearest tenth.

Calculate the value of $\frac{4.2 \cdot 6}{84}$ .

Gabi converts 0.000098 to scientific notation. What is the missing power of 10 in $9.8 \times 10^{?}$ ? a. 5 b. -5 c. 6 d. -6

Calculate the value of $\frac{0.6}{0.02}$ .

Calculate the value of $\frac{0.6}{0.02}$ .

Convert 6.3 meters to centimeters. Use the conversion: 1 meter = 100 centimeters. Answer: $6.3 \times 100 = ?$

Calculate $17.5 - 6.873$ .

A 60 watt bulb uses 0.06 kW/h. How many kW does it use if left on for 15 days? Calculate: $0.06 \times 24 \times 15$ .

Find the sum of 93.5 and 8.7: $93.5 + 8.7$ .

Evaluate the expression: $2.95 + \{3.02 \times (6.125 \div 5.196 - 2.746)\}$ .

Measure 60 sheets of paper at $8.6 \mathrm{~mm}$ . Find max error and limits for one sheet's thickness.

Round 12.67 to the nearest tenth. Enter the answer in the $b$ .

Calculate the value of $2.16 \times 10^{4}$ .