Practice for Lessons 3-1 through 3-3

Explain how to find the product of 90 x 10^4.

Since the exponent is 4, annex (add) 4 zeros to 90. The product is 900,000.

Use Partial Products to Find the Answer. 106 x 7 =

742

Find the Product. 80 x 10^3

80,000

790 x 397 =

800 x 400 = 320,000

Find the Product. 89 x 10,000

890,000

Use Partial Products to Find the Answer. 439 x 22 =

9,658

854 x 733 =

900 x 700 = 630,000

Find the Product. 1,000 x 10

10,000

Use Partial Products to Find the Answer. 892 x 18 =

16,056

Use Partial Products to Find the Answer. 222 x 75 =

16,650

Find the Product. 194 x 10^2

19,400

Find the Product. 29 x 100,000

2,900,000

Estimate the Product. 180 x 586 =

200 x 600 = 120,000

How many zeros will there be in the product of 45 x 1,000?

3 zeros/The product is 45,000.

Use Partial Products to Find the Answer. 340 x 89 =

30,260

Estimate the Product. 300 x 118 =

300 x 100 = 30,000

Estimate the Product. 42 x 598 =

40 x 600 = 24,000

Estimate the Product. 408 x 676 =

400 x 700 = 280,000

Use Partial Products to Find the Answer. 90 x 59 =

5,310

Find the Product. 57 x 1,000

57,000