Decimal Test Review

Adding

100

4.97+9.47

14.44

200

0.97+94.97

95.94

300

136.4+385.96

522.36

400

478.04+5.2

483.24

500

456.693+399.88

856.573

Subtracting

100

368.6-215.9

152.7

200

81.53-33.54

47.99

300

0.67-0.02

0.65

400

75.98-44.37

31.61

500

993.7-777.6

216.1

Multiplying

100

.913x56

51.128

200

26x0.9

23.4

300

5.8x68

394.4

400

5.8x807

4680.6

500

807x185.8

149940.6

Dividing

100

601/5

120.2

200

685/2

342.5

300

3/0.4

7.5

400

6/.96

6.25

500

21/.24

87.5

Decimal Trivia

100

When you add, subtract, or multiply decimals, what is it you always need to do with your decimals?

Line them up!

200

When you have a division problem, which number goes on the inside when setting up your division problem?

The FIRST number.

300

When you have a number that is not a whole number on the outside of a division problem, what must you do with the decimal?

Move it to the right until it becomes a whole number.

400

What do all whole numbers have at the end of them, even if you cannot see them?

A decimal.

500

When moving a decimal, what number do you put in the place of a blank spot?

A zero!