Algebra Expressions Grade 6 Math Period 8 Anton

Combine Like Terms

100

What are like terms?

Terms with the same Variable

Ex:2,4 or 4x,6x

200

12n-18n

-6n

300

15x-1+4x-14

19x-15

400

500-14x+17y-4xy+14x-27y

-4xy-10y+500

500

17x+19

17x+19

Math Vocab.

100

constant

A number standing alone.

200

 coefficient

A number attached to a variable

300

variable

A letter representing a number

400

terms

A number or variable or both seperated by a plus or minus sign.

500

Algebraic expression

An expression with numbers and letters with no equal sign.

Distributive Property

100

1(5+2)

1(5)+1(2)

5+2

7

200

13(2+4-3)

13(2)+13(4)+13(-3)

26+52-39

78-39

39

300

4(-13-4+3)

4(-13)+4(-4)+4(3)

-52-16+12

-68+12

-56

400

4(3+x)+2(4-2x)

4(3)+4(x)+2(4)+2(-2x)

12+4x+8-4x

4x-4x+12+8

0x+20

20                        (not sure if this is right)

500

-2(4-3)

-2(4)-2(-3)

-8+6

-2

Evaluate/Substitute

100

X=3     Y=4     t=-4

4x

12

200

X=3     Y=4     t=-4

4x+2t

12+8

20

300

4x-7t+2y+4

X=3     Y=4     t=-4

12--28+8+4

12+28+8+4

30+8+4

38+4

42

400

t-t+t+t-t+t-t

X=3     Y=4     t=-4

-4-4+4+4-4+4-4

-4

500

-12x+4y-t

X=3     Y=4     t=-4

-36+16-4

20-4

-24

Factor Expressions

100

56+64

8(7+8)

200

63+72

9(7+8)

300

-21-42

7(3-6)

400

17-68

17(1-4)

500

5+42

1(5+42)