Add it Up
35+11
46
27-14
13
17+48
65
27-19
8
Does is it matter what order the numbers are in in addition?
no
21+17
38
154-33
121
167+33
200
159-89
70
Does it matter what order the numbers are in in subtraction?
Yes. The bigger number goes on top.
156+43
199
789-111
678
893+365
1,258
1,672-388
1,284
Use the commutative property to solve 4+2
2+4
1,573+2,325
3,898
1,798-1,456
342
369+568
937
703-211
492
What is the answer to an addition problem called?
Sum
5,123+4,123
9,246
38,965-15,732
23,233
14578+948
15,526
2,001-1,945
56
What is the answer to a subtraction problem called?
Difference