Module 1 Review

Adding/Subtracting Decimals

100

Using a place value chart, solve the following problem:

3 hundreds 7 hundredths + 5 hundredths 

3 hundreds 1 tenth 2 hundredths OR 300.12

200

Using a place value chart, solve the following problem:

6 Thousands 4 Tens 8 Hundredths - 2 Tens 3 Hundredths

6 Thousands 2 Tens 5 Hundredths 

OR

6,020.05

300

Using the place value chart OR standard algorithm, solve the following problem:

459.02 - 128.37

330.65

400

Using the place value chart OR standard algorithm, solve the following problem:

730.276 + 34.892

765.168

500

CHALLENGE: Round to the nearest hundredth.

225.286

225.29

Multiplying/Dividing Decimals

100

Using the place value chart, solve the following problem:

4.582 x 10

45.82

200

Using the place value chart, solve the following problem:

2.46 divided by 10

0.246

300

Using a place value chart OR standard algorithm, solve the following problem:

14,560 x 100

1,456,000

400

Using the place value chart OR standard algorithm, solve the following problem:

3045.4 ÷ 100 =

30.454

Decimal Forms

100

Express in word form:

0.008

Eight thousandths

200

Express as decimal numerals (number form):

Nine and two hundred thirty-five thousandths

9.235

300

Write in word form:

607.409

six hundred seven and four hundred nine thousandths

400

Write as decimal numerals (number form):

Eight hundred and five thousandths

800.005

500

CHALLENGE: Round to the nearest ones.

8.984

9

Exponents

100

Write the following in exponential form:

100,000

10⁵

200

Write the following in standard form:

4 x 10³

4,000

300

Write the following in exponential form:

100 x 10

10³

400

Write the following in standard form:

6.072 x 10³

6,072

Comparing Decimals

100

Use >, <, or = to compare the following.

16.45  ____   16.454

16.45  <   16.454

200

Use >, <, or = to compare the following.

419.10  ____  419.099

419.10  >  419.099

300

Arrange the numbers in decreasing order:

8.508   8.58    7.5    7.058

8.58,  8.508,  7.5,  7.058

400

Arrange the numbers in increasing order:

14.204   14.200   14.240   14.210

14.200,   14.204,   14.210,   14.240

500

CHALLENGE: Round to the nearest tenths.

4.3

4.3