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Writing Expressions
Substitution
Substitution
Vocab
100
The sum of a and 4.
a+4
100

evaluate if x=5 

x+1

6

100

evaluate if m=10

2m+3

23

100

A number that stands alone

A. constant

B. Coefficient

C. Variable

D. expression

E. equivalent expression

Constant

200
The product of 5 and a number.
5x
200

evaluate if x=10 

2x+3

23

200

evaluate if q=6

23-12+q2

47

200

An unknown value.

A. constant

B. Coefficient

C. Variable

D. expression

E. equivalent expression

Variable

300
The difference of a number and 5.
x-5
300

evaluate if x=2.5 

4x

10

300

evaluate if x=11

4x+12/4

47

300

A combination of numbers and variables separated by operation signs. Ex: 2x+3

A. constant

B. Coefficient

C. Variable

D. expression

E. equivalent expression

Expression or algebraic expression

400

A number doubled.

2a

400

evaluate if x=2 and y=3 

2x2+2y - x

12

400

evaluate if x=3 and y=4

4x(3y-2)+18-x


135

400

Two expressions that have the same value.

A. constant

B. Coefficient

C. Variable

D. expression

E. equivalent expression

Equivalent Expressions

500

K less than the product of 3 and g.

3g - k

500

What is the value of the expression 4b3 + 11 when b = 2?

43

500

evaluate if a=0.5 and b=0.7

3a+b(2a+3b)

3.67

500

A numerical quantity placed before and multiplying the variable in an algebraic expression.

A. constant

B. Coefficient

C. Variable

D. expression

E. equivalent expression

Coefficient