2 step
3 step
2 step
2 step
3 step
100

23x5


40


100

8+3x4

44

100

6+7

13

100

4x5

20

100

80+21

101

200

32+5

11

200

3x3x3

9


200

5x9

45

200

42x3

24

200

14+39

43

300

4+92

21

300

22+43+9

56

300

9x2

18

300

62x5

70

300

902+10

190

400

1x52

10

400

5x9+7

33
400

4 divided  1

4

400

5+6

11

400

9+40

49

500

14x3

52

500

4+4+4

12

500

4+44

49

500

9x12

120

500

5 divided 1

5