. Grade 8, Illustrative icon
Task

Calculating and Rounding Numbers

Illustrative MathematicsVaries

Calculators are tremendously useful tools but sometimes they can mislead. Whenever dealing with an irrational number, such as pi, the calculator makes an appropriate approximation. For practical purposes this is sufficient. It is important, however, when performing arithmetic operations, to be careful about the effects of working with rounded numbers.

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