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Question
Estimate the product of 147 and 51.
Estimate the product of 147 and 51.
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Solution
The correct option is B 5000
The general rule that we make is,
round off each factor to its greatest place, then multiply the rounded off factors.
Rounding off 147 to the nearest hundreds gives 100.
Rounding off 51 to the nearest tens gives 50.
Therefore, the estimated product is 100 x 50 = 5000
The general rule that we make is,
round off each factor to its greatest place, then multiply the rounded off factors.
Rounding off 147 to the nearest hundreds gives 100.
Rounding off 51 to the nearest tens gives 50.
Therefore, the estimated product is 100 x 50 = 5000
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