Find the cube root of 226981 and 5832 by estimation.
Answers
Answer:
5832
Given:
Given:5832
Given:5832To find:
Given:5832To find:Cube root of 5832 by using estimation method
Given:5832To find:Cube root of 5832 by using estimation methodSolution:
Given:5832To find:Cube root of 5832 by using estimation methodSolution:Using estimation method
Given:5832To find:Cube root of 5832 by using estimation methodSolution:Using estimation methodFrom right we make one group of three digits and second group of remaining digits.
Given:5832To find:Cube root of 5832 by using estimation methodSolution:Using estimation methodFrom right we make one group of three digits and second group of remaining digits.Therefore,
Given:5832To find:Cube root of 5832 by using estimation methodSolution:Using estimation methodFrom right we make one group of three digits and second group of remaining digits.Therefore,One group=832
Given:5832To find:Cube root of 5832 by using estimation methodSolution:Using estimation methodFrom right we make one group of three digits and second group of remaining digits.Therefore,One group=832Second group=5
Given:5832To find:Cube root of 5832 by using estimation methodSolution:Using estimation methodFrom right we make one group of three digits and second group of remaining digits.Therefore,One group=832Second group=5We know that
Given:5832To find:Cube root of 5832 by using estimation methodSolution:Using estimation methodFrom right we make one group of three digits and second group of remaining digits.Therefore,One group=832Second group=5We know thatWhere unit digit =2
Given:5832To find:Cube root of 5832 by using estimation methodSolution:Using estimation methodFrom right we make one group of three digits and second group of remaining digits.Therefore,One group=832Second group=5We know thatWhere unit digit =2Therefore, unit digit of cube root of 5832=8
Given:5832To find:Cube root of 5832 by using estimation methodSolution:Using estimation methodFrom right we make one group of three digits and second group of remaining digits.Therefore,One group=832Second group=5We know thatWhere unit digit =2Therefore, unit digit of cube root of 5832=8Now,
Given:5832To find:Cube root of 5832 by using estimation methodSolution:Using estimation methodFrom right we make one group of three digits and second group of remaining digits.Therefore,One group=832Second group=5We know thatWhere unit digit =2Therefore, unit digit of cube root of 5832=8Now,Therefore, smaller value will be the ten's place of cube root of 5832.
226981
Consider the number 226981.
Since the unit's digit of 226981 is 1, the units digit of its cube root is also 1.
Now, the number obtained by striking out units, tens and hundred digits =226.
⇒6
3
<226<7
3
Tens digit of the cube root of 226981 is 6.
Hence,
3
226981
=61