Evaluate: (i) (8)3 (ii) (15)3 (iii) (21)3 (iv) (60)3

1.	Evaluate: (i) (8)3 (ii) (15)3 (iii) (21)3 (iv) (60)3
Answer» (i) To calculate the cube of (8)³ We have to multiply the given number three times; = (8 × 8 × 8) = 512 So, 512 is the cube of 8. (ii) (15)³ First multiply the given number three times; = (15 × 15 ×15) = 3375 So, 3375 is the cube of 15 (iii) (21)³ First multiply the given number three times; = (21 × 21 × 21) = 9261 9261 is the cube of 21. (iv) (60)³ First multiply the given number three times; = (60 × 60 × 60) = 216000 216000 is the cube of 60.

Answer»

(i) To calculate the cube of (8)³

We have to multiply the given number three times;

= (8 × 8 × 8) = 512

So, 512 is the cube of 8.

(ii) (15)³

First multiply the given number three times;

= (15 × 15 ×15) = 3375

So, 3375 is the cube of 15

(iii) (21)³

First multiply the given number three times;

= (21 × 21 × 21) = 9261

9261 is the cube of 21.

(iv) (60)³

First multiply the given number three times;

= (60 × 60 × 60) = 216000

216000 is the cube of 60.

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