Which estimation technique will yield a solution that is farthest from the actual product of (–14.89)(1.35)?

The actual product is (−14.89)(1.35) = −20.1015. Front-end estimation keeps only the leading place values, giving about (−10)(1) = −10, which is far from the actual product. Rounding to the nearest whole number gives (−15)(1) = −15, much closer, and the other estimates are also closer than −10.

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