Check your skill with multiplying and dividing integers, decimals, and fractions. These ten multiple-choice questions cover sign rules, division by zero, equal parts, and temperature changes. Pick one answer for each, then read the explanation.
Grade 7Common Core: 7.NS.A.2a · 7.NS.A.2b · 7.NS.A.2c
🎯 Multiplying and Dividing Integers and Rational Numbers – Grade 7 math quiz
Question 1
Three equal jumps from \(0\).
What product does the number line show?
A
\(3(-2) = 6\)
B
\(3 + (-2) = 1\)
C
\(3(-2) = -6\)
D
\((-3)(-2) = 6\)
Question 2
What is \((-8)(-5)\)?
A
\(-40\)
B
\(40\)
C
\(-13\)
D
\(13\)
Question 3
What is \(-54 \div 9\)?
A
\(-6\)
B
\(6\)
C
\(-45\)
D
\(-9\)
Question 4
Which expression is undefined?
A
\(\frac{0}{7}\)
B
\(\frac{-7}{7}\)
C
\(\frac{0}{-7}\)
D
\(\frac{7}{0}\)
Question 5
Five equal parts.
The tape diagram shows \(-20\) split into \(5\) equal parts. What is the value of each part?
A
\(4\)
B
\(-15\)
C
\(-4\)
D
\(-25\)
Question 6
Which expression has a different value from the other three?
A
\(-\frac{15}{3}\)
B
\(\frac{-15}{3}\)
C
\(\frac{15}{-3}\)
D
\(\frac{-15}{-3}\)
Question 7
What is \((-3)(-4)(-2)\)?
A
\(24\)
B
\(-9\)
C
\(-14\)
D
\(-24\)
Question 8
Starting temperature.
The temperature starts at the value shown and falls \(3^{\circ}\text{F}\) each hour for \(4\) hours. What is the final temperature?
A
\(-12^{\circ}\text{F}\)
B
\(-7^{\circ}\text{F}\)
C
\(7^{\circ}\text{F}\)
D
\(-17^{\circ}\text{F}\)
Question 9
Products of \(-3\).
The table multiplies \(-3\) by a list of factors. What is the missing product?
A
\(-3\)
B
\(3\)
C
\(-9\)
D
\(0\)
Question 10
What is \((-0.4)(-7)\)?
A
\(2.8\)
B
\(-2.8\)
C
\(28\)
D
\(0.28\)
🎉 Quiz complete!
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Remember:
- Same signs give a positive result; different signs give a negative result.
- \((-1)(-1) = 1\) follows from the distributive property and \(-1 + 1 = 0\).
- Division by \(0\) is undefined, but \(0 : q = 0\) when \(q \neq 0\).
- \(-\frac{p}{q} = \frac{-p}{q} = \frac{p}{-q}\) for \(q \neq 0\).
See every chapter on the Grade 7 math page.