Grade 3 Subtraction: 3-Digit Subtraction

Worked examples

Real problems from the practice worksheets, solved one step at a time.

1. Example 1

   782 − 410 = ?

   1. Line up the numbers by place value and subtract each column from right to left.
   2. Ones: 2 − 0 = 2.
   3. Tens: 8 − 1 = 7.
   4. Hundreds: 7 − 4 = 3.
   5. 782 − 410 = 372

   Answer: 372

2. Example 2

   968 − 428 = ?

   1. Line up the numbers by place value and subtract each column from right to left.
   2. Ones: 8 − 8 = 0.
   3. Tens: 6 − 2 = 4.
   4. Hundreds: 9 − 4 = 5.
   5. 968 − 428 = 540

   Answer: 540

3. Example 3

   351 − 101 = ?

   1. Line up the numbers by place value and subtract each column from right to left.
   2. Ones: 1 − 1 = 0.
   3. Tens: 5 − 0 = 5.
   4. Hundreds: 3 − 1 = 2.
   5. 351 − 101 = 250

   Answer: 250