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Grade 3 - Mathematics
Subtraction - 4 Digits

Method:

  1. Start subtracting from the ones place.
  2. If the subtrahend is lesser than minuend then we borrow 1 from tens place.
  3. If the subtrahend is lesser than minuend in tens place then we borrow 1 from hundreds place.
  4. If the subtrahend is lesser than minuend in hundreds place then we borrow 1 from thousands place.


Subtraction without regrouping:

Example 1:
QuestionStep 1 Step 2 Step 3Step 4

  1. Start from ones place 5 minus 5 is 0.
  2. In the tens place, 3 minus 2 is 1.
  3. In the hundreds place 4 minus 1 is 3.
  4. In thousands place, 9 minus 5 is 4.
Answer: 4310

Example 2:

  1. Start from ones place 8 minus 6 is 2.
  2. In the tens place, 9 minus 9 is 0.
  3. In the hundreds place 9 minus 8 is 1.
  4. In thousands place, 4 minus 2 is 2.
Answer: 2102


Subtraction with regrouping:

Example:

  1. Start from ones place 7 minus 2 is 5.
  2. In the tens place 3 is less than 8, so 1 is borrowed from 0 which has borrowed 1 from 3. So the result in tens place is 13 minus 8 which is 5.
  3. In the hundreds place 0 becomes 9, the result is 3.
  4. In thousands place, 3 becomes 2 and the result is 1.
Answer: 1355


Directions: Subtract the following.
Question 1: 9022
- 452
Answer:

Question 2: 1097
- 211
Answer:

Question 3: 4805
- 2671
Answer:

Question 4: 8049
- 6377
Answer:

Question 5: 3097
- 2488
Answer:

Question 6: 5538
- 535
Answer:

Question 7: 4782
- 1767
Answer:

Question 8: 4082
- 2939
Answer:

Question 9: 9284
- 4646
Answer:

Question 10: 9396
- 2171
Answer:

Question 11: 6833
- 5886
Answer:

Question 12: 9970
- 9704
Answer:

Question 13: 603
- 455
Answer:

Question 14: 5947
- 3791
Answer:

Question 15: 8828
- 8412
Answer:

Question 16: 9280
- 3113
Answer:

Question 17: 7435
- 3325
Answer:

Question 18: 377
- 107
Answer:

Question 19: 8130
- 6754
Answer:

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