CGA 5 Guide

Which of the following is NOT a mathematical operator?

• + (addition)
• / (division)
• x (variable)

• - (subtraction)

Which of the following is NOT an expression?

• 2x+3y-2z

• 16

• 2x=8

• 99/9

An equation is an expression that has an _____ sign.

Which of the following is NOT an equation?

• Two expressions with an equality sign such as 2x+3=6x+15

• A statement without an equality sign such as x doubled.

• A mathematical statement such as three is equal to three.

• A formula with variables such as

  Area = length x width

A variable represents an _______ value.

Which value is the constant in the expression 10x+60 ?

• x
• 10
• 70
• 60

Which of the following equations contains the constants 2 and 3?

• 2x+3=4

• 5x+2=3

• 5x-2=3

• 3x+4=2

The coefficient is the ______ multiplied by the variable.

What is the coefficient in the equation 121 + 6x = 565?

• 6
• 121

• 565

• 444

How many terms are in the expression 9x + 10y + 12 - 9

• 5

• 4

• 3

• 2