Count on from....
Addition (No Regrouping)
Subtraction (No Regrouping)
Addition with Regrouping
Subtraction with Regrouping
100

11

11, 12, 13, 14...

100

23 + 54

77

100

75 - 62

13

100

45 + 35

80

100

62 - 45

17

200

43

43, 44, 45, 46...

200

44 + 25

69

200

82 - 40

42

200

25 + 18

43

200

58 - 29

29

300

67

67, 68, 69, 70...

300

35 + 62

97

300

56 - 23

33

300

36 + 28

64

300

61 - 39

22

400

50 (By 10s)

50, 60, 70, 80...

400

14 + 74

88

400

76 - 45

31

400

64 + 36

100

400

54 - 18

36

500

5 (By 5s)

5, 10, 15, 20, 25...
500

53 +25

78

500

88 - 37

51

500

67 + 58

125

500

73 - 19

54