Show:
single digit multiplication
Double digit multiplication
Double digit subtraction
Multiplication
Multiplication 2
100

2+8

10

100
10+11

21

100

12-10

2

100

2x4

8

100

5x3

15

200

4+6

10

200

11+30

41

200
31-24

7

200

4x5

20

200

7x4

28

300

4+8

12

300

14+45

60

300

45-36

9

300

6x6

36

300

8x10

80

400

5+6

11

400

44+18

62

400

95-42

53

400

9x8

72

400

9x6

54

500

8+9

17

500

65+84

149

500

98-25

73

500

12x6

72

500

13x3

39