Unit 4 Review

Multi-digit multiplication

100

11x12

What is 132?

200

42x23

What is 966?

300

104x38

What is 3,952?

400

255x73

What is 18,615?

500

1,492x56

What is 83,552?

Multiplying with zeros

100

3x10

What is 30?

200

7x1000

What is 7,000?

300

60x100

What is 1,000?

400

800x20

What is 16,000?

500

400x500

What is 200,000?

Multiplying decimals

100

54x0.2

What is 10.8?

200

74x1.8

What is 133.2?

300

5.4x3.2

What is 17.28?

400

6.5x0.37

What is 2.405?

500

321x4.8

What is 1,540.8?

Shifting decimals

100

4.5x10

What is 45?

200

0.67x100

What is 670?

300

17.25x0.1

What is 1.725?

400

Describe where digits shift when multiplying by 0.1. Describe where the decimal shifts.

What is the digits shift right and the decimal shifts left?

500

State the similarities when multiplying a number by 10 or 0.1. State the differences.

What is each digit shifts by one place, but when multiplying by 10 digits shift left and when multiplying by 0.1 they shift right?

Powers of 10

100

43x10¹

What is 430?

200

91x10³

What is 91,000?

300

0.43x10²

What is 43?

400

0.86x10³

What is 860?

500

0.76x___=7.6

What is 10¹?