Question

Estimate the cube root of 13824 by grouping the digit

Answer 1

Step-by-step explanation:

13824 is an an even number so its cube root has to be an even number.

step 1 :

make 2 group from right to left .

frist group = 824

second group = 13

step 2:

frist group 824 has unit digit 4 so unit digit of cube root will be 4

step 3 :

second group 13 is lies between

(2³=8) and (3³=27)

so take the smaller number 2 as ten's

therefore,

cube root of 13824 is 24