Back to Tutor Intake Assessment: Apply and extend previous understandings of multiplication and division to multiply and divide rational numbers

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
Work through problems with immediate feedback
A

Concepts

1

Using 3×(5+(−5))=03 \times (5 + (-5)) = 0 and the distributive property,
3×5+3×(−5)=03 \times 5 + 3 \times (-5) = 0, so 15+3×(−5)=015 + 3 \times (-5) = 0.
What must 3×(−5)3 \times (-5) equal?

2

What is the sign of the product (−3)×(−5)(-3) \times (-5)?

3

Which of the following is NOT equal to −34-\frac{3}{4}?

B

Procedures

1

Compute (−6)×4(-6) \times 4.

2

Compute (−2)×(−3)×(−4)(-2) \times (-3) \times (-4).

3

Compute −34÷25-\frac{3}{4} \div \frac{2}{5}. Write your answer as a
simplified fraction (use a leading negative sign if negative,
e.g. -a/b).

4

Compute (−48)÷(−6)(-48) \div (-6).

5

Convert 13\frac{1}{3} to a decimal using long division. Write the
result using bar notation over the repeating digit (e.g. 0.d
with a bar over d).

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