Decimal Computation

Place Value/Word Problems

200

You bought a cookie for $1.25 and a soda for $0.80.  How much did you spend in total?

$2.05

400

I bought a hamburger for $2.50 and fries for $1.25.  Then I paid with a $5 bill.  How much change did I get back?

$1.25

600

I bought 3 pencils that each cost $0.72. How much did I pay?

$2.16

800

Mrs. Fox bought 4.5 feet of yarn.  She wants to cut the yarn into pieces that are 0.75 feet each.  How many pieces of yarn will she have?

6 pieces

1000

Mrs. Fox went to dinner with 2 friends.  She ordered spaghetti for $8.95, one friend ordered chicken for $6.55, and the other friend ordered steak for $12.40. How much was the total bill?

$27.90

Adding Decimals

200

3.5 + 1.25

4.75

400

22 + 3.75

$25.75

600

854.23 + 12.245

866.475

800

1.3 + 0.8

2.1

1000

8324 + 1.009

8325.009

Subtracting Decimals

200

6.25 - 1.05

5.20

400

37 - 4.6

32.4

600

My bill at the restaurant was $11.78.  If I paid with a $20 bill, how much change would I get back?

$8.22

800

5.7 - 2.4

3.3

1000

205.92 - 124.56

81.36

Multiplying Decimals

200

2 x 4.1

8.2

400

8.5 x 0.04

0.34

600

3.1 x 7.5

23.25

800

7 x 3.6

25.2

1000

216.4 x 2.19

473.916

Dividing Decimals

200

5.5  / 5

1.1

400

3.4 / 5

0.68

600

51.6 / 0.2

258

800

4.12 / 2

2.06

1000

3.84 / 0.3

12.8