5th Grade Math Review

Powers of 10

100

What is 10^2?

100 

200

8 x 10²

800

300

12 x 10³

12,000

400

23 x 10⁴

230,000

500

2.1 x 10⁴

21,000

Rounding Decimals

100

Round 2.9 to the nearest ones 

3

200

Round 17 to the nearest tens 

20

300

Round 12.64 to the nearest whole number 

13

400

Round 34.51 to the nearest tenths 

34.5

500

Rounds 12.564 to the nearest hundredths 

12.56

Comparing Decimals

100

True or false: 

31.2 < 31.20

False 

31.2 = 31.20

200

Is it <,>,=

1.430 ___ 1.5

1.430 < 1.5

300

Is it <,>,=

4.5000 ___ 4.5

4.5000 = 4.5

400

Is it <,>,=

4.534 ___ 4.5321

4.534 > 4.5321

500

Is it <,>,=

14.512 _____ 41.12

14.512 < 41

Multiplication

100

7 x 9 

63

200

12 x 6

72

300

21 x 8

168 

400

24 x 12

288

500

23 x 3.1

71.3

Add & Subtract Decimals

100

0.3 + 0.2 = 

0.5 

200

1.3 + 1.4 = 

1.7

300

1.5 - 0.20 = 

1.30

400

7.8 + 4.56 = 

12.36

500

7 - 3.46

3.54