Math 8 Review 1

Which number is not an irrational number?

• pi

• 3.465789.........

• $\sqrt{45}$

• $\sqrt{49}$

Which number is not a natural number?

•  $\sqrt{25}$  

•  $5^2$  

• 0

• 4

Tags

CCSS.8.EE.A.2

Which number is not an integer?

• -1

• 0

• 1

• -1.25

Tags

CCSS.6.EE.A.2B

If x=4, then the answer  to $-x+4^2$  =

• -12

• 4

• 12

• -4

Tags

CCSS.6.EE.A.2C

If n=5, what is the answer to the following expression  $\left(4-n^2\right)-6\cdot n+8$  

Tags

CCSS.6.EE.A.2C

Solve the one-step equation $-5+x=-23$  

• -18

• 18

• -28

• 28

Tags

CCSS.6.EE.B.7

Solve the two-step equation  $5-x=-23$  

• 18

• -18

• 28

• -28

Tags

CCSS.6.EE.B.7

Simplify the expression  $x+y-x+3y-2y+y+2x$  

• 0

•  $7y+4x$  

•  $2y+1y+2x$  

•  $2x+3y$  

Tags

CCSS.7.EE.A.1

Simplify the following expression  $2x+3y-2x-3y+3y^2$  

• 0

•  $3y^2$  

•  $4x-6y+3y^2$  

•  $4x-9y^2$  

Tags

CCSS.7.EE.A.1

Simplify the following expression  $2\left(3x-7\right)$  

•  $6x-7$  

•  $6x-14$  

•  $2x-14$  

• -14x

Tags

CCSS.6.EE.A.3