math 1
math 2
math 3
math 4
math 5
100

547-129=

418

100

947-235=

712

100

897#365=

1262

100

8x8=

64

100

6x7=

42

200

9x6=

54

200

20x4=

80

200

54x2=

108

200

5x6=

30

200

8x2=

16

300

35x4=

140

300

9x11=

99

300

50-29=

21

300

8x4=

32

300

8x9=

72

400

954-154=

800

400

60-28=

32

400

155/5=

31

400

7x7=

49

400

6x8=

48

500

436/2

218

500

86/2

43

500

892/2=

446

500

14x24=

336

500

12x42=

504