Topic 1 Math Review 5th Grade

Base 10

100

10¹ is what number 

10

200

5 x 10⁴ is what number 

50,000

300

5 x 10 x 100 is what number 

5000

400

What is the following as an exponent? 6,000,000

6x 10⁶

500

How much does each place value go up by as you move to the right? How much does each place value go up by as you go to the left? 

Times 10 or divided by 10 

Rounding & Comparing Decimals

100

Which is greater? 9.564 or 9.654

9.654

200

Which is greater 0.102 or 0.120

0.120

300

Round to the nearest tenth 25.81

25.80

400

Round to the nearest hundreth 29.858

29.86

500

Round to the nearest tenth AND Hundreth 5.036

Tenth: 5.0

Hundreth: 5.04

Word Form & Expanded Form

100

24,989 in word form 

twenty four thousand eight hundred eighty nine. 

200

144,832 in expanded form 

1 x 10⁵ + 4x10⁴+ 4x10³+8 x10² +3 x10¹ +2x 10⁰

300

5.239 in word form 

six and two hundred thirty nine hundreths 

400

21.41 in word form 

twenty one and fourty one hundreths 

500

9.432 in expanded form 

9 x 10 + (4 x 1/10) + (3 x 1/100) +(2 x 1/1000) 

Place Value

100

What decimal fills in the blank 

0.1, 0.2,         0.4, 0.5

0.3

200

What word does a decimal say? 

And

300

What is the place Value of the 2 in the number 4,253,555?

Hundred thousands

400

What is the place value AND actual value of the 4 in the number 6.843?

Hundreths and 4/100 

500

Compare the numbers 5 in the number below 25.456

The 5 in the ones place value is 100 times as much as the 5 in the hundreths place value. 

Fractions - Decimals

100

What is 0.7 as a fraction?

7/10

200

What is 0.921 as a fraction? 

921/1000

300

What is thirty two hundreths as a fraction AND a decimal

0.32

400

What is twelve and eighteen hundreths as a decimal? 

12.18

500

What is one and five hundred two thousandths as a decimal?

1.502