# 1.8: Quiz

Difficulty Level: At Grade Created by: CK-12

Multiple Choice – Please circle the letter for the correct answer and then write that letter in the blank to the right of each question.

1. What property of addition is being represented by \begin{align*}(9+7)+4=9+(7+4)\end{align*}? _______
1. Closure Property
2. Identity Problem
3. Associative Property
4. Negative One property
2. In the statement \begin{align*}7 \times 1=7\end{align*}, what is the number one called? _______
1. reciprocal
3. product
4. multiplicative identity
3. What addition property states that the sum of two positive real numbers will be a unique real number? _______
1. Commutative Property
2. Closure Property
3. Inverse Property
4. Associative Property
4. What is the product that results when a positive real number is multiplied by its multiplicative inverse. _______
1. one
2. negative real number
3. zero
4. the same positive real number
5. Which of the following represents the commutative property of addition? _______
1. \begin{align*}8+(x+2)=(8+x)+2\end{align*}
2. \begin{align*}13+0=13\end{align*}
3. \begin{align*}5+6=6+5\end{align*}
4. \begin{align*}8+3=11\end{align*}
6. What is the sum of a real positive number and its additive inverse? _______
1. one
2. negative real number
3. the same real positive number
4. zero
7. What property of multiplication is represented by \begin{align*}8 \times(-1)=-8\end{align*}? _______
1. Identity Property
2. Negative One Property
3. Inverse Property
4. Closure Property
8. In the expression \begin{align*}\frac{5}{9}\times\frac{9}{5}\end{align*}, what is the fraction \begin{align*}\frac{9}{5}\end{align*} called? _______
1. the flip
2. the opposite
3. the multiplicative identity
4. the multiplicative inverse

1. C
2. D
3. B
4. A
5. C
6. D
7. B
8. D

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