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Estimate the Sum by Rounding Addends to Whole Numbers

question 170

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Estimate the sum by rounding addends to whole numbers. Then use a calculator to find the exact sum: 2.80 + 5.09 + 3.94 + 6.01.


Definitions:

Optimistic

Having a positive, hopeful outlook on future events, believing in the likelihood of favorable outcomes.

External Locus of Control

The belief that outcomes in one's life are determined by external forces or factors beyond one's personal control.

Healthy Aging

The process of developing and maintaining functional ability that enables wellbeing in older age.

Low Cholesterol Level

An abnormally low concentration of cholesterol in the blood, which can lead to health issues despite cholesterol's negative reputation at high levels.

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