The estimation of Elisha is she needs to buy 160 inches of ribbon to make 12 headbands of 15.5 inches each.
15.5 × 12 = 186
Her estimation is wrong because:
186 - 160 = 26
She needs 26 inches more ribbon to make 12 headbands of 15.5 inches each.
What is estimation?
- Having an approximate estimate of something's worth, number, size, or extent is referred to as estimation in mathematics.
- When we are willing to accept a response that is extremely near to the true result, we utilize estimates of numbers to make mental computations simpler and faster.
- We subconsciously involve estimation in all our day-to-day activities.
- We typically estimate numbers to a certain level of accuracy.
- Numbers are rounded to a particular place value to make them as close to a whole number as possible.
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