Subtraction
Simple Multiplication
Area Model Multiplication
100

462-131=?

331

100

5x3=?

15

100

46x58=?

2,668

200

568-243=?

325

200

8x4=?

32

200

13x47=?

611

300

920-50=?

870

300

7x6=?

42

300

137x4=?

548

400

611-540=?

71

400

11x6=?

66

400

456x19=?

8,664

500

905-241=?

665

500

12x5=?

60

500

632x158=?

99,856