First Quarter Review 8th Grade Math

First Quarter Review 8th Grade Math

Schwarz

Multiple Choice

Simplify:

 $a^2\cdot a\cdot a^4$  

•  $a^6$  

•  $a^7$  

•  $a^8$  

•  $a^{16}$  

Multiple Choice

 $\ \ \left(x^4y^6\right)^3$  Simplify

•  $x^7y^9$  

•  $\left(xy\right)^{13}$  

•  $x^{12}y^{18}$  

•  $\left(xy\right)^3$  

Multiple Choice

 $\frac{x^5y^3}{x^4y^{-2}}$  Simpli

•  $x^9y^1$  

•  $xy^{ }$  

•  $\frac{1}{xy^5}$  

•  $xy^5$  

Multiple Choice

 $\ 3^3\cdot3^4$  Simplify

•  $3^7$  

•  $3^{12}$  

•  $9^7$  

•  $9^{12}$  

Multiple Choice

 $\ \ \frac{4^{-2}}{4^{-6}}$  Simplify

•  $4^{12}$  

•  $4^4$  

•  $\frac{1}{4^4}$  

•  $\frac{1}{4^{-4}}$  

Multiple Choice

 $\ x^2=\ 16$  Solve for x.

•  $4$  

•  $\pm4$  

•  $16^2$  

•  $\pm8$  

Multiple Choice

 $\ \ x^2=60$  Solve for x. 

•  $\sqrt{60}$  

•  $30,\ -30$  

•  $60^2$  

•  $\sqrt{60,\ }-\sqrt{60}$  

Multiple Select

Select all that have an answer of 4 when solved.

• $x^2=8$

• $x^2=\ 16$

• $x^{2\ }=4$

• $x^3=16$

• $x^3=64$

Multiple Select

Select all that have an answer of 3 when solved.

• $x^3=27$

• $x^3=9$

• $x^3=3$

• $x^2=9$

• $x^2=6$

Multiple Choice

 $\ 5+2\left(-4\right)$  Simplify

• -28

• 3

• 11

• -3

Multiple Choice

 $\ -\left(2\right)^2+3\ -\ 6\$  Simplify

• -7

• 1

• 13

• -5

Multiple Choice

 $\ \left(-2\right)^3+1\ \times4$  Simplify

• -2

• 12

• 28

• -4

Multiple Choice

Covert 1.35 to a fraction.

• 
  

  $\frac{135}{10}$
  

• $\frac{27}{20}$

• $\frac{27}{10}$

• $\frac{13}{8}$

Multiple Choice

 $\overline{.4}\$  Convert this to a fraction.

•  $\frac{4}{10}$  

•  $\frac{2}{5}$  

•  $\frac{4}{9}$  

•  $\frac{4}{100}$  

Fill in the Blanks

Write 52,000 in scientific notation.

Multiple Choice

 $\ 3.625\ x\ 10^2$  Convert to standard notation.

• 362.5

• 3,625

• 36,250

• 362,500

Multiple Choice

Find the missing hypotenuse.

• $53$
  

• $9$

• $7.62$

• $26.5$

Multiple Choice

A ten foot ladder is 2.5 feet from the wall. What is the missing leg?

• $9.7\ feet$

• $7.5\ feet\$

• $10.3\ feet\$

• Not enough information.

Multiple Choice

 $\sqrt{12}$  Where would this be on the shown number line?

• Q

• R

• S

• T

Multiple Choice

 $\sqrt{15}$  Simplify.

•  $7.5$  

•  $3.9$  

•  $30$  

•  $2.5$  

Fill in the Blanks

If your window is a perfect square of three feet, then how long is the diagonal? Round to the neasrest hundreth.

Multiple Choice

 $9.76\ e\ 5$  is showing on Carleigh's calculator.  What does e5 mean?

• When converting five zeros need to be added to the right of the base number. 

• When converting five zeros need to be put in front (to the left) of the base number. 

• The calculator has an error. 

• The value of the exponent is 5. 

Multiple Choice

The square root of 23 would be between what two whole numbers?

• 2 and 3

• 3 and 4

• 4 and 5

• 5 and 6