Multiplication Double Digit x Double Digit

Stacking

100

Use stacking 20 x 18

360

200

Use stacking 37 x 21

777

300

Use stacking 45 x 29

1,305

400

Use stacking 56 x 48

2,208

500

Use stacking 87 x 94

8,178

Partial Products

100

Use partial products 40 x 12

480

200

Use partial products 31 x 42

1,302

300

Use partial products 48 x 55 

2,640

400

Use partial products 69 x 73

5,037

500

Use partial products 88 x 93

8,184

Area Model

100

Use area model 13 x 15

195

200

Use area model 39 x 22

856

300

Use area model 47 x 44

2,068

400

Use area model 57 x 73

4,161

500

Use area model 99 x 99

9,801

Challenge

100

Multiply 421 x 20

8,420

200

Multiply 245 x 42

490

300

Multiply 453 x 44

19,932

400

Multiply 676 x 37

25,012

500

Multiply 897 x 86

77,142