Decimal Review

Decimal Place Value

100

Which digit is in the thousandths place?

2.905

5

200

What place is the digit 2 in?

38.215

the tenths place

300

If a digit moves up two spaces on the place value chart, by how much does the value increase?

100 times

400

Which place is the digit 7 in?

903.247

the thousandths place

500

What is the value of the digit 8 in:

34.782

0.08 (eight hundredths)

Powers of Ten

100

.047 x 100 = ______

4.7

200

Complete the equation:

.05 x _____ = 5

100 OR 10²

300

720 divided by 1,000

.072

400

Complete the equation:

_____ x 10 = .07

.007

500

Explain why this equation is wrong and find the correct answer.

5.4 x 1,000 = 5.4000

With decimal numbers, you are moving the digits up three place values, if you just add zeroes behind a decimal it does not change the place of the digits. 

Correct equation: 5.4 x 1,000 = 5,400

Decimal Forms

100

Write in standard form:

four and twenty-three hundredths

4.23

200

Write in expanded form:

45.27

40 + 5 + 0.2 + 0.07

(4 x 10)+(5 x 1)+(2 x 0.1)+(7 x 0.01)

(4 x 10)+(5 x 1)+(2 x 1/10)+(7 x 1/100)

300

Write the decimal form of:

sixty and four hundred seven thousandths

60.407

400

Write in word form:

7.348

seven and three hundred forty-eight thousandths

500

Write in standard form:

(10 x 7)+(1 x 3)+(6 x 0.01)+(4 x 0.001)

73.064

Comparing Decimals

100

Write an inequality statement to compare 192.871 and 182.987

192.871 > 182.987

182.987 < 192.871

200

Write an inequality statement to compare 706.32 and 706.291

706.3 > 706.291

706.291 < 703.3

300

Which inequality is correct?

A) 12.08 > 12.8

B) 12.08 < 12.8

C) 12.08 = 12.8

D) 12.80 > 12.8

B) 12.08 < 12.8

400

Which number has the greatest value:

A) 401.98

B) 401.928

C) 401.9

D) 402.1

D) 402.1

500

Order from greatest to least:

A) 1.297

B) 1.5

C) 2.096

D) 2.13

E) 1.48

D, C, B, E, A

Adding and Subtracting Decimals

100

.67 + .804

1.474

200

1.9 - .73

1.17

300

48.609 + 36.12

84.729

400

During Candy Wars, 5th grade collected 178.06 pounds of candy. 2nd grade collected 209.53 pounds. What is the difference in the amount between 2nd and 5th grade's candy collection?

31.47 lbs.

500

Jasmine earned $3.75 for doing dishes, $5.25 for cleaning the bathroom, and $7.50 for walking the dog. She bought a fidget for $6.29. How much money doe Jasmine have left?

Jasmine has $10.21 left.