CH 1 Real Numbers and Algebraic Expressions

​You try

Multiple Select

The number 0 is in which of the following set(s). Choose all that apply.

• Natural Numbers

• Whole Numbers

• Integers

Multiple Select

The number 7 is in which of the following set(s). Choose all that apply.

• Natural Numbers

• Whole Numbers

• Integers

Multiple Select

The number -5 is in which of the following set(s). Choose all that apply.

• Natural Numbers

• Whole Numbers

• Integers

​You try

Multiple Choice

Evaluate $$\left|-\frac{2}{3}\right|$$  

• $$-\frac{2}{3}$$  

• $$\frac{2}{3}$$  

• $$-\frac{3}{2}$$  

• $$\frac{3}{2}$$  

Multiple Choice

How would you rewrite the expression $$2+7-5$$  using additive inverse so it's only sums.

• 2+7+(-5)

• 2-7+5

• 7-5+2

• 2-7+(-5)

Multiple Select

Which of the following products will be POSITIVE? Choose all the apply.

• (-9)(-2)

• -1.2(0.4)

• 0(-12)

• (8)(2)(-1)(-2)

Multiple Select

Which of the following quotients will be NEGATIVE? Choose all the apply.

• $$\frac{32}{-8}$$  

• $$\frac{-16}{-4}$$  

• $$-\frac{5}{8}\div5$$  

• $$\frac{12}{0}$$  

Multiple Choice

$$\left(\frac{1}{3}\right)^3$$  is equivalent to:

• $$\left(\frac{1}{3}\right)\times3$$  

• $$\left(\frac{1}{3}\right)\times\left(\frac{1}{3}\right)\times\left(\frac{1}{3}\right)$$  

• $$\left(\frac{1}{3}\right)+\left(\frac{1}{3}\right)+\left(\frac{1}{3}\right)$$  

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Multiple Choice

What's the multiplicative inverse (reciprocal) of 7?

• -7

• 7

• $$\frac{1}{7}$$  

• $$-\frac{1}{7}$$  

Multiple Choice

Rewriting the expression $$3\cdot\left(8y\right)$$   as $$\left(3y\right)\cdot8$$   uses which property?

• Associative

• Commutative

• Both Associative and Commutative

• Neither

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