Numerical and Variable Expressions

Write a word phrase for each algebraic expression.
7c − 3

• 3 less than the product of 7 and the number c

• 3 less than the sum of 7 and the number c

• 3 less than the difference of 7 and the number c

• 3 less than the quotient of 7 and the number c

Write a word phrase for each algebraic expression.
b ÷ 31

• the quotient of b and 31

• the sum of b and 31

• the difference of b and 31

• the sum of b and 31

Evaluate 8a - b     if a = 10   and   b = 6

• 74

• 38

• 1000

• 9000

Evaluate 2a + 4b 
if a = 10     and    b = 6

• 20

• 24

• 44

• 4

6c - 2a + 6b if a = 9. b = 4 and c = 11

• 100

• 72

• 66

• 24

Evaluate 7y - 3y for y=2

• 40

• 73

• 8

• 4

What is the correct order of operations?

• PMDSE

• DASEMP

• SPEMAD

• PEMDAS

A number multiplied by ("attached to") a variable

3x

• variable

• term

• coefficient

• factor

Multiplying a number outside the parentheses by each term inside the parentheses (double rainbow!)

• associative property

• commutative property

• distributive property

• like terms

A letter that represents an unknown value

• evaluate

• variable

• term

• coefficient