Show:
Multiples of Ten
Estimation
Partial Products
Arrays/Area Models
Algorithm
100

6 x 50

What is 300?

100

Estimate 493 x 3

What is 1500?

100

List the partial products of 16 x 5

What is 50 and 30?

100

Use an array to solve 3 x 121

What is (3 x 100) + (3 x 20) + (3 x 1) = 300 + 60  + 3 = 363

100

33 x 6

What is 198?

200

700 x 8

What is 5600?

200

Estimate 6 x 8166

What is 48,000?

200

List the partial products of 75 x 5

What is 25 and 350?

200

Use an array to solve 75 x 5

What is (70 x 5) + (5 x 5) = 350 + 25 = 375?

See student work

200

223 x 5

What is 1115?

300

7 x 9000

What is 63,000?

300

Estimate 5703 x 3

What is 8,000?

300

List the partial products and solve 253 x 4

What is 12, 200, 800 and 1,012?
300

Use an area model to solve 14 x 2

What is (10 x 2) + (4 x 2) = 20 + 8 = 28?

See student work

300

14 x 72

What is 1008?

400

3 x 2,000

What is 6000?

400

71 x 24

What is 1400?

400

List the partial products and solve 26 x 28

What is 48, 160, 120, 400 AND 728

400

Use an array to model and solve 14 x 12

What is (10 x 10) + (10 x 2) + (10 x 4) + (2 x 4) = 100 + 20 + 40 + 8 = 168?


See student work

400

84 x 37

What is 3,108?

500

80 x 30

What is 2400?

500

63 x 87

What is 5400?

500

List the partial products and solve 64 x 86

What is 124, 360, 320, 4800 AND 5,504

500

Use an array to model 20 x 14

What is (20 x 10) + (20 x 4) = 200 + 80 = 280?

See student work

500

Write and solve an equation to show how to find 20 x 19. 

What is 25 x 19 = n AND n = 475