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Multiply by 10 or 100
Multiple by multiples of 10
Multiply by multiples of 100
Partial Products
Estimating Products
100

10 x 4 = 

40

100

3 x 40 = 

120

100

200 x 3 =

600

100

Use breaking apart to find:

14 x 6 = 

14 x 6 =

10 x 6 = 60

4 x 6 = 24

60 + 24 = 84

100

Estimate the solution for:

54 x 2 = 

50 x 2 = 100

200

10 x 9 = 

90

200

60 x 8 = 

480

200

7 x 800 = 

5,600

200

Use breaking apart to find:

56 x 5 = 

6 x 5 = 30

50 x 5 = 250

30 + 250 = 280

200

Estimate the solution for:

82 x 4 =

80 x 4 = 320

300

100 x 7 = 

700

300

70 x 9 = 

630

300

900 x 8 = 

7,200

300

Use breaking apart to find:

136 x 4 =

6 x 4 = 24

30 x 4 = 120

100 x 4 = 400

400 + 120 + 24 = 544

300

Estimate the solution for:

256 x 5 = 

300 x 5 = 1,500

400

100 x 10 =

1,000

400

80 x 40 =

3,200

400

40 x 500 = 

20,000

400

What are the partial products for:

43 x 3 =

3 x 3 = 9

40 x 3 = 120

Partial products are 9 + 120

400

Estimate the solution for:

846 x 9 = 

800 x 9 = 7,200

500

100 x 100 = 

10,000

500

90 x 60 = 

5,400

500

70 x 900 = 

63,000

500
What are the partial products for:


139 x 6 = 

9 x 6 = 54

30 x 6 = 180

100 x 6 = 600

Partial Products: 54 + 180 + 600

500

Estimate the solution for:

3,498 x 3 = 

3,000 x 3 = 9,000