adding multi-digit's
subtracting multi-digit's
adding whole numbers
subtracting whole numbers
100

46+14

60



100

70-26

44


100

9+6

15



100

9-2



7


200

46+10

56


200

10-9


1


200

6+7


13



200

10-10


0


300

200+300

500


300

100-90

10


300

9+8

17


300

300-9

291


400

90+210

300



400

200-150


50


400

400+9

409


400

13-400


387


500

1000+2305

3305


500

500-357


143

500

9+9+3+4


24


500

500-9-8


483


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