Back to Apply and extend previous understandings of multiplication and division to multiply and divide rational numbers — Problem 1 · Task Set 9

7.NS.A.2 Tutor Intake -- Multiplying and Dividing Rational Numbers

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Grade 7·10 problems·~12 min·Common Core Math - Grade 7·standard·7-ns-a-2

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Concepts

Using $3 \times (5 + (-5)) = 0$ and the distributive property,
$3 \times 5 + 3 \times (-5) = 0$ , so $15 + 3 \times (-5) = 0$ .
What must $3 \times (-5)$ equal?

$-15$

$15$

$0$

$-45$