Add 1 digit numbers
Add 2 digit numbers
Add by 10s and 100s
Add by 9s
Add multiple numbers
100

9+2=

11

100

12+8=

20

100

3+10=

13
100

9+3=

12

100

1+9+10+6+10=

36

200

5+3=

8

200

11+12=

23

200

11+10=

21

200
3+8=

11

200

2+5+4+8+6=

25

300

6+4=

10

300

55+34=

89

300

19+10=

29

300

9+8=

17

300

8+9+7+9+6=

39

400

8+6=

14
400

16+75=

91

400

12+100=

112

400

9+5=

14

400

2+1+8+7+5=

23

500

9+7=

16

500

63+82=

145

500

75+100=

175

500

9+17=

26

500

9+9+9+9+10

46

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