Unit 2:Final Review

Place Value

100

Add in the necessary commas 

868303884

868,303,884

200

What is the place value of the underlined digit in 64,883,995?

ten million

300

Write 320.764 in word form. 

three hundred twenty and seven-hundred and 64 thousandths. 

400

What are the two PLACE values in the underlined number? 

72.869

7 = tens place

6 = tenths place

500

Write 49,092.55 in expanded form 

40,000 + 9,000 + 90 + 2 + .5 + .05

Multiplying by Powers of Ten

100

Find the product: 

938 × 10

9,380

200

Find the product: 

729.89 × 10

7,298.9

300

Find the product: 

642.906 × 100

64,290.6

400

Find the product: 

8.5 × 0.1

0.85

500

Find the product: 

23.5 × 0.01

0.235

Exponents and Decimals

100

Find the value of 10⁴.

10,000

200

Write 10 × 10 × 10 × 10 × 10 in exponent form

10^5

300

Find the value of 7 × 10³.

7,000

400

Write 10 × 10 × 10 × 10 × 10 × 10 in word form.

ten to the power of 6

500

Find the product: 

1.5 x 10^3

1,500

Decimals

100

Compare 7.442 & 7.244

7.442 > 7.244

200

Compare 384.47 & 384.470

384.47 = 384.470

300

Order from least to greatest: 8.28, 8.03, 8.57

8.03, 8.28, 8.57

400

Order from least to greatest: 23.29, 23.99, 23.31

23.29, 23.31, 23.99

500

Order from greatest to least: 65.353, 65.403, 65.903, 65.82

65.903, 65.82, 65.403, 65.353,

Rounding

100

Round 85.393 to the nearest whole number.

85

200

Round 578.252 to the nearest tenth.

578.3

300

Round 4,302.995 to the nearest thousand.

4,000

400

Round to 1,359.3 the nearest hundred's place.

1,400

500

Round 15,792.687 to the nearest hundredths place

15,792.69