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Estimate and then calculate. 2.34 × 6.9
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Estimate and then calculate. 2.34 × 6.9

User Supergiox
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1 Answer

5 votes

Rounding the first number, you have


2.34\approx2.3\approx2

because the number is rounded down if the digit to the right is less than 5.

Rounding the second number, you have


6.9\approx7

because the number is rounded up if the digit to the right is greater than 5.

Therefore, estimating and calculating, you have


2.34\cdot6.9​\approx2\cdot7=14

User Sabaoon Bedar
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8.6k points
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