UNIT 1 REVIEW

TranslatingEvaluatingSimplifying

Translating

• 4 Tricky Words– Less Than 1st goes 2nd– Subtracted from

– Sum Addition with ( )– Difference Subtraction with ( )

7 less than a number

x- 7

3 times the sum of a number and 9

3( x + 9)

Evaluating

• Step 1– Write any invisible ( ) that are needed• Fractions with stuff on top or/and on bottom

• Step 2– Replace any variables with ( )

• Step 3 – Plug in values for variables

• Step 4– Calculate

x = 2 y=-2 z=-1 x y

z

2 2

3

Simplifing

• Distribute anything outside the ( )• Combine like terms– Variables and Exponents must be the SAME• Then add or subtract coefficients and keep variable

)4(2)5(3 2 xxx

CALCULATORS

• Fraction 1/3o 1 Abc 3

o Mixed number 2 ½o 2 Abc 1 abc 2

o -3 Negative 3o (-) 3 Button beside equal button

o Decimal to fractiono 2nd PRB enter

o Mixed number to improper fractiono 2nd Abc enter