Common Core: 3.NBT
Answer Key
Grade 3subtractionMedium

3-Digit Subtraction (Set A)

Subtract 3-digit numbers without borrowing

8 problems

1.
270
-100
___
2.
306
-273
___
3.
342
-264
___
4.
378
-242
___
5.
414
-209
___
6.
450
-164
___
7.
485
-107
___
8.
521
-461
___