Show:
addition/subtraction
multiplication
division
one-step addition
one-step subtraction
100

27+43 

70

100

4(15)

60

100

20/5

4

100

x + 8 = 13

5

100

x - 9 = 19

28

200

432-89

343

200

18(7)

126

200

60/12

5

200

x + 15 = 44

29

200

x - 17 = 55

72


300

99+82

181

300

23(10)

230

300

144/16

9

300

x + 26 = 92

66

300

x - 76 = 13

89

400

177-124

53

400

17(11)

187

400

78/6

13

400

x + 39 = 146

107

400

x - 44 = 201

245

500

726+622

1,348

500

25(33)

825

500

204/12

17

500
x + 108 = 457

349

500

x - 102 = 11

113