Addition and Subtraction Expressions

Math

September 7, 2010

Numerical Expressions

Use only numbers

45 + 98 0.72 – 0.098

Algebraic Expressions

Uses variables

X + 437.3 85 - y

Word Phrases

Uses words and numbers

a number subtracted from 7

12 more than 6

MORE THAN/LESS THANSUBTRACTED FROM

Anytime you see the word than, to, or from, the second number or variable goes first.

Otherwise, list them in order.

EXAMPLES

43 LESS THAN 86

86-43

MORE EXAMPLES

THE SUM OF 278 AND 563

278 + 563

EVALUATE EXPRESSIONS

SOLVE

PLUG IN AND SOLVE

339 + 638 6.05 + m, when m=2.16

HOMEWORK

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