Subtraction of 3Digit Numbers with Regrouping
Subtraction of 3digit numbers with regrouping are explained here with examples.
As you borrow from the tens column, you can borrow from the
hundreds column also.
REmember:
1 ten = 10 ones
1 hundred = 10 tens
Solved Examples on Subtraction of 3Digit Numbers with Regrouping:
1. Subtract 674 – 458 Step I: Arrange the numbers vertically. Step II: Subtract the ones column. Since, 8 > 4 and we cannot subtract 8 from 4. So, we regroup 7 tens and 4 ones. Now, 7 tens + 4 ones = 6 tens and 14 ones. 14 – 8 = 6 ones Step III: Subtract the tens column. 6 – 5 = 1 tens Step IV: Subtract the hundreds column. 6 – 4 = 2 hundreds.

Thus, 674 – 458 = 216

2. Subtract 747 – 489.
Step I: Arrange the numbers vertically.
Step II: Subtract the ones column. Since, 9 > 7 and we
cannot subtract 9 from 7. So, we regroup 4 tens and 7ones. Now, 4 tens + 7 ones
= 3 tens and 17 ones. 17 – 9 = 8 ones Step III: Subtract the tens column. Since, 1 ten is
regrouped by ones column, so we are left with 4 – 1 = 3 tens. We cannot
subtract 8 from 3. So, we regroup 7 hundreds and 3 tens. Now, 7 hundreds + 3
tens = 6 hundreds and 13 tens. 13 – 8 =
5 tens
Step IV: Subtract the hundreds column. 6 – 4 = 2 hundreds.

Thus, 747  489 = 258

Word Problems on Subtraction of 3Digit Numbers with Regrouping:
3. There are 705 birds living in the garden. During winters,
438 flew away. How many birds were left in the garden?
Solution:
Birds in the garden = 705
Birds flew away during winters = 438
Questions and Answers on Subtraction of 3Digit Numbers with Regrouping:
I. Subtract the following:
(i) 625  56
(ii) 464  79
(iii) 552  88
(iv) 814  156
(v) 732  163
(vi) 406  387
(vii) 862  195
(viii) 608  125
(ix) 233  156
(x) 428  397
(xi) 786  397
(xii) 984  592
(xiii) 642  555
(xiv) 983  394
(xv) 437  157
(xvi) 840  800
Answers:
I. (i) 569
(ii) 385
(iii) 464
(iv) 658
(v) 569
(vi) 19
(vii) 667
(viii) 483
(ix) 77
(x) 31
(xi) 389
(xii) 372
(xiii) 87
(xiv) 589
(xv) 280
(xvi) 40
II. Subtract the numbers:
(i) 235  67
(ii) 652  285
(iii) 447  285
(iv) 672  87
(v) 805  299
(vi) 844  666
(vii) 554  368
(viii) 422  173
(ix) 892 – 509
Answers:
II. (i) 168
(ii) 367
(iii) 162
(iv) 585
(v) 506
(vi) 178
(vii) 186
(viii) 249
(ix) 383
III. Fill in the missing number. First one has been done for
you.
Answers:
III. (ii) 7, 7
(iii) 7, 7
(iv) 13, 13
IV. Fill in the missing numbers:
Answers:
IV. (i) 3, 3
(ii) 4, 2
(iii) 0, 6
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