Find quick ways to calculate these products: (a) 2 × 1768 × 50 (b) 72 × 125 [Hint: 125 = 1000/8] (c) 125 × 40 × 8 × 25

(a) 1,76,800 (b) 9000 (c) 10,00,000 — (a) 2 × 50 = 100, so 2 × 1768 × 50 = 1768 × 100 = 1,76,800 (b) 125 = 1000/8, so 72 × 125 = 72 × 1000/8 = 72000/8 = 9000 (c) 125 × 8 = 1000 and 40 × 25 = 1000, so 1000 × 1000 = 10,00,000

Find quick ways to calculate these products: (a) 2 × 1768 × 50 (b)…

Question 29 of 43intermediate🔧 ApplyNumerical3 marks

Find quick ways to calculate these products: (a) $2 \times 1768$ × 50 (b) $72 \times 125$ [Hint: 125 = 1000/8] (c) $125 \times 40$ × $8 \times 25$

(a)

Answer

1,76,800

(b)

Answer

9000

(c)

Answer

10,00,000

Explanation

(a) $2 \times 50$ = 100, so $2 \times 1768$ × 50 = $1768 \times 100$ = 1,76,800 (b) 125 = 1000/8, so $72 \times 125$ = $72 \times 1000$ /8 = 72000/8 = 9000 (c) $125 \times 8$ = 1000 and $40 \times 25$ = 1000, so $1000 \times 1000$ = 10,00,000

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