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Question
Estimate the following by rounding off each number to its greatest place:
(i) 439 + 334 + 4,317
(ii) 8,325 − 491
(iii) 1,08,734 − 47,599
(iv) 898 × 785
(v) 9 × 795
(vi) 87 × 317
(i) 439 + 334 + 4,317
(ii) 8,325 − 491
(iii) 1,08,734 − 47,599
(iv) 898 × 785
(v) 9 × 795
(vi) 87 × 317
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Solution
(i) 400 + 300 + 4,000 = 4,700
(ii) 8,000 − 500 = 7,500
(iii) 1,00,000 − 50,000 = 50,000
(iv) 900 × 800 = 7,20,000
(v) 10 × 800 = 8,000
(vi) 90 × 300 = 27,000
(ii) 8,000 − 500 = 7,500
(iii) 1,00,000 − 50,000 = 50,000
(iv) 900 × 800 = 7,20,000
(v) 10 × 800 = 8,000
(vi) 90 × 300 = 27,000
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