Decimal Review

Adding Decimals

100

4.35 + 2.48

6.83

200

7.92 + 1.07

8.99

300

3.16 + 5.85

9.01

400

0.75 + 6.25

7.00

500

9.34 + 0.66 

10.00

Subtracting Decimals

100

6.78 − 2.45

4.33

200

9.50 − 3.28

6.22

300

8.65 − 7.14

1.51

400

5.00 − 1.75

3.25

500

4.29 − 0.84

3.45

Multiplying Decimals

100

2.3 × 4.1

9.43

200

5.2 × 3.5

18.20

300

6.1 × 2.4

14.64

400

3.7 × 1.2

4.44

500

4.5 × 0.6

2.70

Multiplying Whole Numbers

100

24 × 36

864

200

47 × 58

2726

300

63 × 29

1827

400

81 × 42

3402

500

81 × 42

2345

Random

100

What is the formula for area of a rectangle?

length x width

200

What is the rule when adding and subtracting decimals?

Line up the decimal

300

How many different ways can you write a ratio?

3

Numbers (colon)

Words (to

Fraction

400

What number is a percentage out of?

100

500

What expression do we use to remember order of operations?

PEMDAS - Please Excuse My Dear Aunt Sally