Back to Solve multi-step real-life and mathematical problems with positive and negative rational numbers — Problem 1 · Task Set 17

7.EE.B.3 Tutor Intake -- Multi-Step Problems with Rational Numbers

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Grade 7·6 problems·~9 min·Common Core Math - Grade 7·standard·7-ee-b-3

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Concepts

A student computes the cost of 8 tickets at $12.75 each and gets
$1,020.00. Which estimate best shows this answer is wrong?

8 tickets at about $13 each should cost roughly $104, not over $1,000.

The answer has too many decimal places to be correct.

$1,020.00 is an even number, so it must be wrong.

There is no way to estimate this without doing the exact multiplication first.