Decimals

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 value of the 2?

Tens

800

In 1.203 what place is 2 in?

Tenths 

1000

Write this number in expanded form:

14.134

(1 X 10) + (4 X 1) + (1 X 1/10) + (3 X 1/100) + (4 X 1/1000)

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

Subtracting Decimals.

200

Subtract these decimals.

3.53 - 2

1.53

400

Subtract these decimals.

10.71 - 0.7

10.01

600

Subtract these decimals.

2.54 - 1.82

0.72

800

Subtract these decimals.

2.15 - 1.05

1.1

1000

Subtract these decimals.

1.72 - 0.8

0.92

Mix it Up

200

How many decimal values are there?

Infinite

400

What word do we use for a decimal point when speaking?

and

600

What fraction is equivalent to 0.50?

1/2

800

How many centimeters are in one meter?

One hundred

1000

What number is equal to 10³

1,000