Decimals Review

Place Value

200

In 9.81, what place is the 1 in?

Hundredths 

400

In 28.465, what place is the 5 in?

Thousandths 

600

129.87946 What is the place value of the 6?

Hundred Thousandths 

800

In 1.203 what place is the 2 in?

Tenths 

1000

In 93.4258, what place is the 8 in?

Ten Thousandths 

Multiplying by 10, 100, 1000

200

12.1 x 100 =

1,210

400

9,563 x 10 =

95,630

600

52.1 x 1,000 =

52,100

800

0.321 x 100 =

32.1

1000

59.8 x 1,000 =

59,800

Adding Decimals

200

Add these decimals: 21.74 + 8.27

30.01

400

Add these decimals: 6.125 + 18

24.125

600

Add these decimals: 5.2 + 3.11

8.31

800

Add these decimals: 17 + 9.54

26.54

1000

Add these decimals: 4.67 + 29.1

33.77

Multiplying Decimals

200

Multiply these decimals: 0.03 * 10

.3

400

Multiply these decimals: 0.23 * 7

1.61

600

Multiply these decimals: 4.4 * 5.3

23.32

800

Multiply these decimals: 0.7 * 2.6 

1.82

1000

Multiply these decimals: 2.5 * 7

17.5

Subtracting Decimals

200

Subtract these decimals: 10.71 - 0.7

10.01

400

Subtract these decimals: 851.701 - 312.4

539.301

600

Subtract these decimals: 547.612 - 3.10

544.512

800

Subtract these decimals: 9.034 - 0.095

8.939

1000

Subtract these decimals: 1.72 - 0.809

0.911

DividingDecimals

200

Divide these decimals: 0.9 ÷ 3 

0.3

400

Divide these decimals: 0.832 ÷ 0.4 

2.08

600

Divide these decimals: 9.735 ÷ 0.003 

3245

800

Divide these decimals: 0.477 ÷ 0.09

4.3

1000

Divide these decimals: 2.805 ÷ 0.11 

25.5

Comparing decimals

200

7.3 __ 7.03

>

400

0.16 __ 0.5

<

600

Write a number on the empty line to make the sentence true:

2.1  =  2.09 + ______

0.01

800

Choose the largest number: 

15.4    15.44    15.04

15.44

1000

Write these numbers from smallest to greatest: 

1.4  1.34  1.44  1.5  1.3  1.30  1.28  1.49

1.28   1.30   1.3   1.34   1.4   1.44   1.49   1.5

or

1.28   1.3   1.30   1.34   1.4   1.44   1.49   1.5