Decimal Operations Review

Addition of Decimals

100

3.5 + 17. 83=

21.33

200

89.37 + 199.99=

289.36

300

52 + 78.437=

130.437

400

999 + 999.999

1,998.999

500

7.8 + 129 + 83.93=

220.73

Subtraction of Decimals

100

87.88 - 43.55

44.33

200

79.62 - 38.71=

40.91

300

65.73 - 36.84=

28.89

400

843 - 97.32=

745.68

500

100 - 45.45=

54.55

Multiplication of Decimals

100

578 x 0.2=

115.6

200

8.38 x 0.5=

4.19 or 4.190

300

128 x 0.5=

64.0

400

707 x 0.2=

141.4

500

605 x 3.9=

2,359.5

Division of Decimals

100

4.5 divided by 5

0.9

200

3.6 divided by 6

0.6

300

49.01 divided by 7=

7.01

400

5,252.5 divided by 4

1,313.125

500

1.1 divided by 4

0.275

Vocabulary/Word Problem

100

In 5 - 3 = 2, what is 2 called?

Difference

200

In 2 + 3 = 5 What are 2 and 3 called? What is 5 called?

2 and 3: addends 5: sum

300

5 x 3 = 15 What are 5 and 3 called? What is 15 called?

5 and 3: factors 15: product

400

In 6 divided by 3 equals 2. What is 6 called? What is 3 called? What is 2 called?

6: dividend 3: divisor 2: quotient

500

Sally bought a sandwich for $5.59 and an iced tea for $1.29. How much did she pay? She paid with a $20 bill. What was her change?

cost of sandwich and iced tea: $6.88 change: $13.12