We have learnt already subtraction of 4-digit numbers with regrouping. Subtraction of 5-digit numbers can also be done in the same way.
1. Subtract 28051 from 51278.
Solution:
Step I: Arrange the numbers vertically. Step II: Subtract the ones. 8 - 1 = 7 ones. Write 7 in ones column. Step III: Subtract the tens. 7 tens - 5 tens = 2 tens. Write 2 in tens column. Step IV: Subtract the hundreds. 2 - 0 = 2 hundreds. Write 2 in hundreds column. Step V: Subtract the thousands. Since 8 > 1, we cannot subtract. Regroup 5 ten thousands and 1 thousand. 5 ten thousands + 1 thousand = 4 ten thousands + 11 thousands. 11 - 8 = 3 thousands. Write 3 in thousands column. Step VI: Subtract the ten thousands. 4 - 2 = 2 ten thousands. Write 2 in ten thousands column. |
Hence, 51278 - 28051 = 23227. |
Questions and Answers on Subtraction of 5-digit Numbers:
1. Find the difference:
(i) 95270 – 40120
(ii) 62521 – 39248
(iii) 88619 – 59878
Answer:
(i) 55150
(ii) 23273
(iii) 28741
4th Grade Math Activities
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