Decimals Review

Adding and Subtracting Decimals

100

Add.

43.02 + 5.9 

48.92

200

Add.

134.59 + 67.128

201.718

300

Subtract.

52.3 - 17.9

34.4

400

Find the sum of 1,098.89 + 345.99.

1,444.88

500

Find the difference between 716.8 and 453.978.

262.822

Multiplying and Dividing Decimals

100

Multiply.

43 x 2.5

107.5

200

Multiply. 

56 x 8.9

498.4

300

Divide.

48.3 divided by 3

16.1

400

Find the quotient of 98 and 5.

19.6

500

Find the product.

48.3 x 6.87

331.821

Comparing and Rounding Decimals

100

Compare.

17.40

17.4

17.40 = 17.4

200

Round to the nearest tenth.

9.86

9.9

300

Round to the nearest whole number.

74.43 

74

400

Write in standard form then compare.

fourteen and two hundredths

1 x 10 + 1 x 4 + 2 x 0.01

14.02 = 14.02

500

Write in standard form then compare.

100 x 7 + 1 x 9 + 4 x 0.1 + 5 x 0.001

seven hundred nine and forty five hundredths

709.405 < 709.45

Powers of Ten and Unit Conversions

100

How many inches are in one foot?

12 inches

200

What is 10³ equal to?

1,000

300

Solve.

4.5 x 10²

450

400

Solve.

540 divided by 10³

0.54

500

Solve both.

5.2 m = ______ cm

783 m = ______ km

520 cm

0.783 km

Writing and Evaluating Expressions

100

Write the expression in number form. Do not solve.

the sum of 45 and 3 divided by 2

(45 + 3) / 2

200

Write the expression in word form. Do not solve.

(15 - 4) x 7

the difference between 15 and 4 multiplied by 7

300

Solve the expression using the order of operations.

(56 + 34) x 8

720

400

Solve the expression using the order of operations.

45 - 4 + 25

66

500

Solve the expression using the order of operations.

8 + 9 x 5 + (54 - 16)

91