Simplification

Simplify: 

 $13-\left(12-6\div3\right)\ =?$  

• 11

• 3

•  $\frac{7}{3}$  

• none of these

 $What\ is\ the\ value\ of\ \left(-4\right)\ \times\left(7-11\right)$  

• 16

• 12

• 14

• 20

 $What\ is\ the\ value\ of\ 19\ -\left(1+5\right)\ -3$  

• 15

• 10

• 15

• 20

 $What\ is\ the\ value\ of\ 30\times6+\left(5-2\right)$  

• 30

• 20

• 60

• -60

(-4)⁷ ÷ (-4³) is equivalent to

• (-4)⁴

• 4⁴

• -4⁴

• 4^-4

Simplify,

(z³yx) × (x²yz)

• z⁴ y² x³

• 6 zyx

• 3z 2y 3x

• z² ÷ x

Tags

CCSS.HSA.APR.A.1

Write without brackets

(2 x y² )²

• 2 x² y⁴

• 2 x y⁴

• 4 x² y⁴

• 2 ( 2 x y²)

Write $3^2\times\left(\frac{1}{3^4}\right)$ 

as a SINGLE power in its simplest form

•  $3^2$ 

•  $-3^2$  

•  $\frac{1^2}{3^2}$  

•  $3^{-2}$  

Which expression is equivalent to the following?

• 32x³y⁴

• 32x⁹y¹³

• 16x⁸y¹²

• 16x⁶y⁷

a+a

• 2a

• a²