Free Printable Mastering Decimal Operations

1.

Write your name and class period

4 lines

2.

Emily bought the following amounts of fruit at a fruit stand:
0.75 pounds of grapes
0.5 pounds of bananas
1.25 pounds of apples

How much did her fruit weigh altogether?

a)

0.25 pounds

b)

2.05 pounds

c)

2.50 pounds

d)

25.0 pounds

3.

Josh bought one T-shirt for $7.90 and another T-shirt for $12.40. What is the total amount he spent?

a)

$4.00

b)

$4.50

c)

$20.30

d)

$20.00

4.

Justin made $46 mowing lawns during the summer. He went to the movies and spent $16.54, the arcade and spent $8.50, and the comic book store and spent $12.98. How much money does he have left?

a)

$7.98

b)

$5.48

c)

$6.92

d)

$8.21

5.

Haley and her 4 friends decide to go out to dinner at Applebee's. The bill for their table came to $65.30. If you wanted to calculate how much they each paid, what number would you divide by?

a)

4

b)

5

c)

3

d)

$65.30

6.

On Tuesday, Mr. Rodriguez bought a new video game system for $345.67. On Friday, the system went on sale for $299.99. How much money could Mr. Rodriguez have saved if he would have bought the system on Friday?

a)

$44.98

b)

$154.23

c)

$645.66

d)

$45.68

7.

What is the result of adding $3.75$ and $2.5$ ?

a)

$5.15$

b)

$6.25$

c)

$5.25$

d)

$6.5$

8.

Subtract $4.8$ from $9.3$ . What is the result?

a)

$4.5$

b)

$5.1$

c)

$4.3$

d)

$5.5$

9.

Multiply $2.4$ by $3.5$ . What is the product?

a)

$8.4$

b)

$7.8$

c)

$8.6$

d)

$9.0$

10.

Divide $7.2$ by $1.2$ . What is the quotient?

a)

$5.0$

b)

$6.0$

c)

$7.0$

d)

$6.5$

11.

What is the result of $5.5 - 3.75 + 2.25$ ?

a)

$4$

b)

$3.5$

c)

$4.5$

d)

$5$

12.

Round $7.68$ to the nearest whole number. What is the result?

a)

7

b)

8

c)

7.5

d)

8.5

13.

Estimate the sum of $4.3$ and $5.7$ by rounding each number to the nearest whole number first.

a)

8

b)

9

c)

10

d)

11

14.

What is the estimated product of $3.6$ and $2.9$ when both numbers are rounded to the nearest whole number?

a)

6

b)

9

c)

10

d)

12

15.

Express $4500$ in scientific notation.

a)

$4.5 \times 10^3$

b)

$45 \times 10^2$

c)

$0.45 \times 10^4$

d)

$4.5 \times 10^2$

16.

Which of the following numbers is equivalent to $3.2 \times 10^4$ ?

a)

320

b)

3200

c)

32000

d)

320000

17.

What is the result of multiplying $(2 \times 10^3)$ by $(3 \times 10^2)$ ?

a)

$6 \times 10^5$

b)

$6 \times 10^6$

c)

$5 \times 10^5$

d)

$5 \times 10^6$

18.

Express the sum of $4 \times 10^4$ and $3 \times 10^4$ in scientific notation.

a)

$7 \times 10^4$

b)

$7 \times 10^3$

c)

$7 \times 10^5$

d)

$7 \times 10^6$

19.

What is the value of the digit 5 in the number 3,582?

a)

5

b)

50

c)

500

d)

5,000

20.

In the number 7,349, what is the value of the digit 9?

a)

9

b)

90

c)

900

d)

9,000

21.

In the number 12.345, what is the value of the digit 4?

a)

0.4

b)

0.04

c)

0.004

d)

4

22.

Identify the place value of the digit 6 in the number 45.678.

a)

ones

b)

tens

c)

tenths

d)

hundredths

23.

Convert the decimal number 5.678 to its expanded form.

a)

5 + 0.6 + 0.07 + 0.008

b)

5 + 0.6 + 0.07 + 0.08

c)

5 + 0.6 + 0.7 + 0.008

d)

5 + 0.06 + 0.07 + 0.008

24.

Which of the following is the standard form of the expanded number 3 + 0.4 + 0.05 + 0.006?

a)

3.456

b)

3.4056

c)

3.4560

d)

3.0456

25.

Express the number 0.203 in expanded form.

a)

0.2 + 0.03

b)

0.2 + 0.003

c)

0.2 + 0.03 + 0.003

d)

0.2 + 0.03 + 0.0003

26.

Round 0.4567 to the nearest thousandth. What is the result?

a)

0.456

b)

0.457

c)

0.46

d)

0.45

27.

Round $9.999$ to the nearest hundredth.

a)

$10.00$

b)

$9.99$

c)

$9.90$

d)

$9.98$

28.

Round $6.786$ to the nearest tenth.

a)

$6.7$

b)

$6.8$

c)

$7.0$

d)

$6.78$

29.

Arrange the following decimals in ascending order: 0.56, 0.65, 0.506, 0.605.

a)

0.506, 0.56, 0.605, 0.65

b)

0.56, 0.506, 0.65, 0.605

c)

0.605, 0.65, 0.56, 0.506

d)

0.65, 0.605, 0.56, 0.506

30.

Which of the following lists the decimals in descending order: 0.89, 0.98, 0.809, 0.908?

a)

0.98, 0.908, 0.89, 0.809

b)

0.809, 0.89, 0.908, 0.98

c)

0.89, 0.809, 0.98, 0.908

d)

0.908, 0.98, 0.809, 0.89

31.

Identify the correct order of these decimals from smallest to largest: 0.45, 0.54, 0.405, 0.504.

a)

0.405, 0.45, 0.504, 0.54

b)

0.45, 0.405, 0.54, 0.504

c)

0.504, 0.54, 0.405, 0.45

d)

0.54, 0.504, 0.45, 0.405

32.

Calculate the result of $(4.5 + 3.2) - (2.1 + 1.3)$ .

a)

4.3

b)

3.3

c)

5.3

d)

2.3

33.

What is the value of $(6.7 - 2.5) + (3.4 - 1.2)$ ?

a)

6.4

b)

7.4

c)

5.4

d)

8.4

34.

Simplify the expression $(8.9 + 1.1) - (4.5 + 2.5)$ .

a)

3.0

b)

2.0

c)

4.0

d)

1.0

35.

What is the estimated product of $5.8$ and $2.1$ when both numbers are rounded to the nearest whole number?

a)

10

b)

12

c)

15

d)

18

36.

Estimate the square root of $50$ by identifying the two closest perfect squares.

a)

6 and 7

b)

7 and 8

c)

5 and 6

d)

8 and 9

37.

Estimate the square root of $120$ by rounding to the nearest whole number.

a)

10

b)

11

c)

12

d)

13

38.

Estimate the value of $2 \sqrt{50}$ as a whole number.

a)

10

b)

14

c)

20

d)

16

39.

Estimate as a whole number: $4\ \sqrt[\ ]{27}-2$

a)

98

b)

18

c)

20

d)

25

40.

What is the approximate value of $\sqrt{50}$ rounded to the nearest whole number?

a)

7

b)

8

c)

9

d)

6

41.

Express the number 450,000 in scientific notation.

a)

$4.5 \times 10^5$

b)

$45 \times 10^4$

c)

$4.5 \times 10^4$

d)

$45 \times 10^5$

42.

Which of the following is equivalent to $7.8 \times 10^3$ ?

a)

780

b)

7800

c)

78,000

d)

7,800

43.

Round 3.14159 to the nearest hundredth. What is the result?

a)

3.14

b)

3.15

c)

3.16

d)

3.13

44.

What is 5.678 rounded to the nearest tenth?

a)

5.6

b)

5.7

c)

5.68

d)

5.67

45.

Round 12.3456 to the nearest whole number. What is the result?

a)

12

b)

13

c)

12.3

d)

12.4

Mastering Decimal Operations

Total questions: 45

Worksheet time: 43mins

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