10's and Estimations
Area Models
Distributive Proporty
Partial Products
Regrouping
100

10 x 45 = ?

450

100

12 x 17 = ?

204

100
24 x 15 = ?

360

100

15 x 12 = ?

180

100

12 x 13 = ?

156

200

20 x 80 = ?

1,600

200

25 x 32 = ?

800

200

35 x 21 = ?

735

200

22 x 34 = ? 

748

200

18 x 26 = ?

468

300
Estimate 47 x 39 = ?

50 x 40 = 2,000

300

42 x 64 = ?

2,688

300
58 x 34 = ?

1,972

300

42 x 39 = ?

1,638

300

42 x 28 = ?

1,176

400

80 x 73 = ?

5,840

400

38 x 51 = ?

1,938

400

83 x 68 = ?

5,644

400

62 x 73 = ?

4,526

400

63 x 87 = ?

5,481

500

6,000 x 63 = ?

378,000

500

38 x 524 = ?

19,912

500

89 x 235 = ?

20,915

500

92 x 85 = ?

7,820

500

89 x 98 = ?

8,722