CH 1.3 Real Numbers and Algebraic Expressions

Fill in the Blank

$$-15+21=$$  

Fill in the Blank

$$-15-3=$$  

Fill in the Blank

$$-9.1+\left(-2.3\right)=$$  

Fill in the Blank

$$9.1-\left(-1.2\right)=$$  

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)

Fill in the Blank

Simplify $$-4-2+8$$  

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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Fill in the Blank

Simplify $$3-\left[\left(5-7\right)+2\left(6-10\right)\right]$$