PRE-ALGEBRAMRS. YOW

Formulating expressions, equations, & Inequalities

DCMS stands for??

DeSoto Central Middle School!!!!

BFF stands for???

What about?

LOL???

GTG?

TTYL??

What about??

What is a VARIABLE???

A letter that stands for…..A NUMBER!

NEW VOCABULARY!

VARIABLE – a letter that stands for a numberALGEBRAIC EXPRESSION – a mathematical

expression that contains one or more variables

EX: x+5NUMERICAL EXPRESSION – a mathematical

expression that contains ONLY numbers EX: 3+5

PLUSSUM

MORE THANINCREASED BY

TOTALIN ALL

ADDING WORDS (+)

MINUSDIFFERENCELESS THANSUBTRACT

DECREASED BYFEWER THAN

SUBTRACTING WORDS (-)

TIMESPRODUCT

MULTIPLIED

MULTIPLICATION WORDS (x)

DIVIDEDQUOTIENT

SEPARATED

DIVIDING WORDS

Verbal Expressions Algebraic Expressions

The sum of a number, x, and 10

The difference of 6 and 6

3 times d

The quotient of 3 & y

x+10

6-r

3d

3 y or

Translate into algebraic expressions…..

3y

FLIP THE PROBLEM!!!

MORE THAN

FEWER THAN

LESS THAN

5 more than x x+5

7 less than d d-7

500 fewer than yy-500

Write an algebraic EQUATION (=)

• You buy 6 bottles of sports drink. You also buy a box of snacks that costs $4.59. The bill is $13.53. Which equation would determine how much each bottle of sports drink costs?

A. 6d=4.59+13.53B. 6d=4.59C. 6d+4.59=13.53D. 6d=13.53

Write an algebraic EQUATION (=)

Which equation represents the following situation? Sam has 20 DVDs in his collection, which is 5 times as many DVDs as Richard has. How many DVDs, “d”, does Richard have?

A. 5d=20B. 20-d=5C. d/5=20D. 5+d=20

Write an algebraic EQUATION (=)

Which equation represents the following problem? Dean ate 11 cookies after dinner, which was 3 more than twice as many cookies as Sara ate. How many cookies, c, did Sara eat?

A. 2c+11=3B. 2c-3=11C. 2c-11=3D. 2c+3=11