Question

Determine the products by suitable rearrangement:
(i) 2 x 1497 x 50 (ii) 4 x 358 x 25 (iii) 625 x 20 x 8 x 50

Answer 1

Answer:

(i)149700

(ii)35800

(iii)5000000

Answer 2

Answer:

(i) 2 x 1497 x 50

⇒ 2 x 50 x 1497

⇒ 1000 x 1497

⇒ 1497000

(ii) 4 x 358 x 25

⇒ 4 x 25 x 358

⇒ 100 x 358

⇒ 35800

(iii) 625 x 20 x 8 x 50

⇒(625 x 8) x (20 x 50)

⇒(625 x 8) x (2 x 10 x 50)

⇒(625 x 8) x (2 x 50 x 10)

⇒ 5000 x (100 x 10)

⇒ 5000 x 1000

⇒ 5000000

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