Unit 1 Overview - Quest

Write an algebraic expression for:

2 less than the product of 5 and n

• 2 - 5n

• 5n - 2

• n(2 - 5)

• 3n

Write an algebraic expression for:

a number n divided by 4

• $\frac{n}{4}$

• $\frac{4}{n}$

• 4n

• 4 ÷ n

Simplify:
 $24\ \div\ \left(3\ +\ 2^2\right)$  

• 3.4

•  $\frac{24}{7}$  

• 4.8

• 12

Evaluate the expression below when x = 3 and y = 6:
 $3x\cdot2\div y$  

• 3

• 0

• 1

• 6

Evaluate the expression below when a = 2 and b = 4:
 $\left(4a\right)^{3\ }\div\left(b-2\right)$  

• 256

• 12

• 16

• no solution

Simplify:
 $-20-\left(-5\right)\cdot\left(-2^2\right)$  

• -40

• 40

• -60

• 60

Simplify:
 $\left(-\frac{1}{4}\right)^3$  

•  $\frac{1}{64}$  

•  $-\frac{1}{64}$  

•  $-\frac{1}{12}$  

• no solution

Simplify:
 $-\left|-25\right|$  

• 25

• -25

• 5

• -5

Simplify:
 $\sqrt{-\frac{16}{25}}$  

•  $\frac{4}{5}$  

•  $-\frac{4}{5}$  

•  $\frac{16}{25}$  

• no solution

Simplify:
 $5x^2-x^2$  

•  $6x^2$  

•  $4x^2$  

• 5

• 4x