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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: 4699
- 1505
Answer:

Question 2: 7360
- 4396
Answer:

Question 3: 3776
- 2466
Answer:

Question 4: 8881
- 4026
Answer:

Question 5: 8874
- 5202
Answer:

Question 6: 5707
- 918
Answer:

Question 7: 6574
- 601
Answer:

Question 8: 6215
- 4670
Answer:

Question 9: 9899
- 5673
Answer:

Question 10: 4977
- 4117
Answer:

Question 11: 3434
- 2058
Answer:

Question 12: 813
- 559
Answer:

Question 13: 3006
- 1941
Answer:

Question 14: 4810
- 1933
Answer:

Question 15: 9070
- 8393
Answer:

Question 16: 3093
- 1790
Answer:

Question 17: 6187
- 575
Answer:

Question 18: 4352
- 453
Answer:

Question 19: 9335
- 8654
Answer:

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