single digit addition
double digit addition
triple digit addition
100
9 + 4
What is 13
100
13+10
What is 23
100
230 + 34
What is 264
200
5+5
What is 10
200
23+38
What is 61
200
340 + 38
What is 378
300
6+7
What is 13
300
59 + 28
What is 87
300
573 + 28
What is 601
400
2+9
What is 11
400
89 +93
What is 182
400
799 + 21
What is 820
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