DECIMALS and EXPRESSIONS

Adding

100

4.2 + 3.1

7.3

200

7.32 + 5.8

13.12

300

.0235 + 2.101

2.1245

400

3.03006 + 5.0021

8.03216

Subtracting

100

4.2 - 3.1

1.1

200

38.61 - 5.04

33.57

300

22 - x = 3

x = 19

400

99 - x = 36

x = 66

Multiplying

100

1.5 x 3

4.5

200

0.9 x 6

5.4

300

3.12 x 8

24.96

400

4.007 x 4

16.028

Equivalent Decimals

100

Are 0.90 and .9 equivalent decimals?

Yes

200

Are 0.009 and 0.090 equivalent decimals?

No

300

Give two equivalent decimals to

0.45

Options:

.45

.450

.4500

.45000

400

List three equivalent decimals for

.809

Options:

0.809                              0.80900

0.8090                           0.809000000000000

.8090

.80900