JHS Math

1. Math
Translating Algebraic
Expressions
By: Darala Hartwell

2. Remember:
1. A variable is a letter used to represent an unknown value.
2. A numerical expression includes numbers and operations.
3. An algebraic expression contains variables, numbers and operations.

3. a
b
x
y
What am I?
What do I represent?
How did I
get here?
I am so
unknow
n
Variables are letters that represent unknown values.

4. Numerical Expressions
Numerical expressions include numbers and operation symbols.

5. Algebraic Expressions
An algebraic expression includes:
Numbers Operations and Variables

6. Let’s look at examples of a numerical expressions:
12 + 3
32
8
7(4)

7. Let’s look at examples of algebraic expressions.
x - 4
2(5+n)
b
2

8. Equations
Algebraic expressions like phrases in English are incomplete.
An equation, like a sentence, is complete. You will notice the
inclusion of a very special symbol.
An equation is made up of numbers, variables,
and an equal sign.
3b + 5 = 26

9. Rewrite these verbal expressions as algebraic expressions.
5. Four less than a number
4. 56 increased by twice a number
3. n to the seventh power
2. the product of 15 and some number
1. the sum of s and 12
s+12
15n
56+2a
n-4
n7

10. Let’s write equations for these sentences.
1. Forty-three less than n is equal to 35.
n – 43 = 35
2. Seven more than y is 13.
y + 7 = 13

11. The End