4th Grade Decimals Review

Place Value

100

What is the value of the 4 in 74.3?

4 

200

What is the value of the 3 in 12.34?

 .3 or 3/10

300

What is the value of the 1 in 14.23?

10

400

What is the value of the 5 in 223.65?

.05 or 5/100

500

What is the value of the 9 in .90?

.9 or 9/10

Decimal Forms

100

Write this decimal in number form:  3.4

three and four tenths

200

Write this decimal as a fraction: 0.34

34/100

300

Write this decimal in expanded form: 15.72

10 + 5 + .7 + .02

400

Write this decimal in standard form: 

eight hundred thirteen and forty-two hundredths

813.42

500

Write this decimal in expanded form:

799.08

700 + 90 + 9 + .0 + .08

Comparing Decimals

100

Which decimal is larger? 3.56 or 35.6?

35.6

200

Which decimal is larger?  76.4 or 8.79?

76.4

300

Which decimal is larger?  3.456 or 34.56?

34.56

400

Which decimal is smaller?   .099 or .909?

.099

500

Which decimal is larger?  

three and nine hundredths or three and two tenths?

three and two tenths

Ordering Decimals

100

Put these decimals in order from smallest to largest:

1.2, 1.7, 1.1, 1.0

1.0, 1.1, 1.2, 1.7

200

.08, .18, .11, .09

.08, .08, .11, .18

300

Put these decimals in order from smallest to largest:

13.64, 36.1, 136.4, 4.99

4.99, 13.64, 36.1, 136.4

400

Put these decimals in order from smallest to largest:

1.65, 10.6, 16.5, 1.95

1.65, 1.95, 10.6, 16.5

500

Put these decimals in order from smallest to largest: (you may write your answer in standard form)

thirteen hundredths,  three and six tenths,  six hundredths,  one and one hundredth

six hundredths (.06), thirteen hundredths (.13), one and one hundredth (1.01) and three and six tenths (3.6)

Adding and Subtraction Decimals

100

Add these decimals:

3.65 + 1.21

4.86

200

Subtract these decimals: 

9.66 - 3.24

6.42

300

Subtract these decimals:

28.03- 19.94

8.09

400

Pluto and Tinkerbell went to a movie.  They spent $11.50 on tickets, $16.42 on pop and popcorn and $2.99 on M&Ms.  How much did they spend in all?

$30.91

500

Mrs. Pearson went shopping on Saturday.  She started out with $70.00.  She spent $15.98 at Target, $43.21 at HyVee and $6.58 at Starbucks.  How much money did she have left after shopping? 

$4.23