Unit 1 Math Review

Add/Subtract Decimals(NO calculators)

100

45.6 + 26.3

71.9

200

14.25 - 5.14

9.11

300

18.06 + 9.798

27.858

400

3.652 - 1.41

2.242

500

8.006 - 6.38

1.626

Multiply Decimals

100

4.89 x 2.2 

10.758

200

2.01 x 0.43

0.8643

300

54.1 x 0.69

37.329

400

Complete the sequence of numbers in this set...

7.5  6.25   5   ?   ?

3.75     2.5 

500

The weights of 3 kittens at one week of age were 3.6 ounces, 4.2 ounces, and 3.3 ounces. If each kitten has gained 2.3 ounces, how much does each of the kittens weigh?

5.9 oz 

6.5 oz

5.6 oz

Divide Whole Numbers & Decimals

100

34 ÷ 10 

Write the quotient as a decimal

3.4

200

231 ÷ 42

Write the quotient as a decimal

5.5 

300

78.32 ÷ 2

Write the quotient as a decimal

39.16

400

1,722 ÷ 13 

Set this up as a long division problem and record remainders as fractions 

132 6/13 

500

6,668 ÷ 44

Set this up as a long division problem and record remainders as fractions

151 24/44

Multiply Fractions

100

4/7 x 2/3

8/21

200

1/2 x 11/12

11/24

300

2/5 x 1/4 

2/20 = 1/10

400

8/9 x 9/10

72/90 = 4/5

500

4 x 6 1/4 

100/4 = 25

Divide Fractions

100

3/5 ÷ 2 

3/10

200

4 ÷ 2/5 

20/2 = 10 

300

18 ÷ 3/8 

144/3 = 48

400

6 ÷ 2/3 

18/2 = 9

500

20 ÷ 3/4 

80/3 = 26 2/3