In round off to nearest 100 we will learn how to round the number to the nearest hundred.
1. While rounding off to the nearest hundred, if the digit in the
tens place is between 0 – 4 i.e. < 5, then the tens place is replaced
by ‘0’.
2. If the digit in the units place is equal to or >5,
then the tens place is replaced by ‘0’ and the hundreds place is
increased by 1.
Examples on rounding off to the nearest hundred (100):
(i) 142 → 100
We see the digit in the tens place is 2, we round to the nearest multiple of hundred which is less than the number. Hence, 142 is nearer to 100 than 200.
(ii) 486 → 500
We see the digit in the tens place is 8, we round to the nearest multiple of hundred which is greater than the number. Hence, 486 is nearer to 500 than 400.
(iii) 799 → 800
We see the digit in the tens place is 9, we round to the nearest multiple of hundred which is greater than the number. Hence, 799 is nearer to 800 than 700.
(iv) 4387 → 4400
We see the digit in the tens place is 8, we round to the nearest multiple of hundred which is greater than the number. Hence, 4387 is nearer to 4400 than 4300.
(v) 950 → 1000
We see the digit in the tens place is 5, we round to the nearest multiple of hundred which is greater than the number. Hence, 950 is nearer to 1000 than 900.
Rounding off Decimal Fractions.
Worksheet on Rounding off number.
5th Grade Numbers Page
5th Grade Math Problems
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