Three addends
fact families
two digit addition
three digit addition
subtraction
100

5 + 6 + 7 =

18

100

7 + ____ = 17

17 - _____ = 7

10

100

13 + 10 =

23

100

100 + 100 =

200

100

18 - 8 =

10

200

11 + 12 + 13 =

36

200

9 + ____ = 18

18 - 9 = _____

9

200

15 + 10 =

25

200

120 + 100 =

220

200

22 - 10 =

12

300

22 + 33 + 44 =

99

300

15 + ____ = 23

23 - _____ = 15

8

300

33 + 33 =

66

300

135 + 110 =

245

300

26 - 15 =

11

400

44 + 45 + 46 =

135

400

12 + ____ = 24

24 - _____ = 12

12

400

55 + 55 =

110

400

116 + 115 =

231
400

47 - 25 =

22

500

64 + 65 + 66 =

195

500

17 + _____ = 38

38 - ______ = 17

21

500

77 + 76 = 

153

500

355 + 245 =

600

500

99 - 29 =

70

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