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M011
and M113 Algebra Lingo
Variables and Algebraic Expressions
A variable is a symbol used to denote any element of a given set -- often a letter used to stand for a number. Variables are used to change verbal expressions into algebraic expressions.
Given the Verbal Expression below
(a) the sum of a number and 7
(b) the number diminished by 10
(c) seven times the number
(d) x divided by 4
(e) five more than the product of 2 and n
Try the Online Algebra Textbook, "Understanding Algebra" for a good table of "Words for Operations" like the below terms.
write in Algebraic Expression
n + 7 or 7 + n
n - 10
7 n
x/4
2 n + 5 or 5 + 2 n
Key Words denoting addition:
sum larger than enlarge
plus gain rise
more than increase grow
greater than
Key Words denoting subtraction:
difference smaller than lower minus fewer than diminish lose decrease reduced less than drop
Key Words denoting multiplication:
product times of multiplied by twice
Key Words denoting division:
quotient ratio divided by half
Made
with Claris
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