page No 114:
Question 1:
Which of the following numbers are notperfect cubes?
(i) 216
(ii) 128
(iii) 1000
(iv) 100
(v) 46656
Page No 114:
Question 4:
Parikshit makes a cuboid of plasticine of sides 5 cm, 2 cm, 5 cm. How many such cuboids will he need to form a cube?
Page No 116:
Question 3:
You are told that 1331 is a perfect cube. Can you guess without factorization what is its cube root? Similarly, guess the cube roots of 4913, 12167, 32768