| Subtract It | Add It | Check It with addition, is it correct? |
|---|---|---|
|
321
556 - 235=
|
358
235 + 123 =
|
correct
556 - 235 = 321
|
|
628
773 - 145 =
|
793
670 + 123 =
|
correct
773 - 145 = 628
|
|
27
321 - 294 =
|
742
458 + 284 =
|
No, =27
321 - 294 = 53
|
|
128
600 - 472 =
|
990
829 + 161 =
|
no, 128
600 - 472 = 120
|
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