adding 1 digit

adding 1 digit

adding 2 digits

regrouping

3 digit

more regrouping

100

5+6

What is 11

100

12+15

What is 27

100

46+55

What is 101

100

123+234

What is 357

100

105+217

What is 322

200

4+8

What is 12

200

15+34

What is 49

200

39+66

What is 105

200

622+135

What is 757

200

378+278

What is 656

300

7+6

What is 13

300

22+51

What is 73

300

77+46

What is 123

300

204+356

What is 560

300

835+284

What is 1119

400

8+7

What is 15

400

84+15

What is 99

400

86+76

What is 162

400

379+438

What is 817

400

934+634

What is 1568

500

9+8

What is 17

500

63+35

What is 98

500

97+45

What is 142

500

396+546

What is 942

500

937+968

What is 1905

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