5.1 Review

Multiplying Powers of 10

100

10² =

What is 100?

200

10³=

What is 1,000?

300

10² x 10 =

What is 1,000?

400

10³ x 9 =

What is 9,000?

500

10⁵ x 4.5 =

What is 450,000?

Adding and Subtracting Decimals

100

2 tenths + 7 tenths =

What is 9 tenths?

200

25 hundredths - 3 hundredths =

What is 22 hundredths?

300

45 hundredths + 2 tenths =

What is 65 hundredths?

400

98 hundredths - 5 tenths =

What is 48 hundredths?

500

79 hundredths + 1 tenth =

What is 80 hundredths?

Rounding Decimals

100

Round to the nearest TEN: 

4.9

What is 5?

200

Round to the nearest HUNDRED: 

5,220

What is 5,200?

300

Round to the nearest TENTH: 

4.6

What is 5?

400

Round to the nearest HUNDREDTH: 

6.781

What is 6.78?

500

Round to the nearest TENTH: 

35.380

What is 35.4?

Dividing Decimals

100

16 tenths ÷ 4 =

What is 4 tenths?

200

5.6 ÷ 7 =

What is 8 tenths?

300

6.45 ÷ 5 =

What is 1.29?

400

1.70 ÷ 2 = 

What is .85?

500

8.7 ÷ 5 =

What is 1.74?

Multiplying Decimals

100

.6 x 2

What is 1.2?

200

.09 x 4 =

What is .36?

300

5.3 x 3 =

What is 15.9?

400

12.2 x 7 = 

What is 85.4?

500

6.321 x 4 =

What is 25.284?