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Question

Find the estimated quotient obtained on dividing 1237 by 37 by rounding off each number to the nearest ten.

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Solution

We first round off the numbers:
On rounding 1237 to the nearest ten we get 1240 (Verifying ones place, we have 7 ≥ 5, so we round it up to the next ten) ...(0.5 marks)
On rounding 37 to the nearest ten we get 40 (Verifying ones place, we have 7 ≥ 5, so we round it up to the next ten) ...(0.5 marks)

Finally, we obtain the estimated quotient = 1240 ÷ 40 = 31 ...(1 mark)

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