Show:
Addition (no regrouping)
Subtraction (no regrouping)
Addition (with regrouping)
Subtraction (with regrouping)
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100

10 + 30  

40

100

9 - 7

2

100

12 + 8

20

100

12 - 5

7

100

Fill in the missing numbers...

5, 10, ___, 20, ____

15, 25

200

13 + 2

15

200

19 - 2

17

200

25 + 15

40

200

22 - 18

4

200

Fill in the missing numbers...

10, 20, ____, 40, 50, ____

30, 60

300

25 + 13

38

300

28 - 15

13

300

38 + 29

67

300

30 - 14

16

300

Fill in the missing numbers...

32, 42, 52, ____, _____, 82

62, 72

400

82 + 12

94

400

86 - 33

53

400

89 + 9

98

400

81 - 26

55

400

Fill in the missing numbers...

84, 74, ____, 54, ____

64, 44

500

53 + 26 

79

500

74 - 41

33

500

63 + 19

82

500

95 - 47

48

500

Fill in the missing numbers...

97, ____, 77, ____, 57

87, 67