Multiples of 10
Area Model
Distributive Property
Partial Products
Traditional Algorithm
100

23 x 10

230

100

20 x 56

1,120

100

12 x 45

540

100

15 x 15

225

100

11 x 86

946

200

40 x 60

2,400

200

34 x 51

1,734

200

37 x 56

2,072

200

28 x 18

504

200

24 x 36

864

300

50 x 30

1,500

300

65 x 82

5,330

300

55 x 73

4,015

300

59 x 65

3,835

300

48 x 61

2,928

400

70 x 40

2,800

400

44 x 66

2,904

400

79 x 79

6,241

400

76 x 87

6,612

400

85 x 75

6,375

500

90 x 30

2,700

500

98 x 76

7,448

500

97 x 69

6,693

500

91 x 83

7,553

500

87 x 96

9,312