Algebra 1-2 Test Review

Classifying real numbers and significant digits

100

Classify this number in the most specific classification of real numbers: -5

Integer

200

Classify this number in the most specific classification of real numbers: 

pi

Irrational number (the most famous one)

300

How many significant digits does this number have: 0.00003

1

400

Classify this number in the most specific classification of real numbers: 

1/2

Rational number (can be written as a fraction)

500

How many significant digits does this number have: 20.0

3

Distributive property

100

3(2x+4)

6x+12

200

-3(p+5x-4)

-3p-15x+12

300

5(3x-4.1y+7)

15x-20.5y+35

400

-1.2(3.5a+2.8b)+0.5c

-4.2a-3.36b+0.5c

500

4.7(-1.2x)+3(-2.5y)

-5.64x-7.5y

Combining like terms

100

4a+3b-2a+5b

2a+8b

200

3x+2y-z+2x-y+4z

5x+y+3z

300

6.8p-4+p-1.7

7.8p-5.7

400

2.1xy-7y+3xy-3.45y+13

5.1xy-10.45y+13

500

10x^2-3x+4-2x^2+x

8x^2-2x+4

2-step equations

100

x/4+3=7

x=16

200

5y-7=18

y=5

300

5-b/2=3

b=4

400

4c+1=13

c=3

500

x/2-9=11

x=40

Multi-step equations

100

2(3x+2)=10

x=1

200

3x+4-2x+6=12

x=2

300

4(c+3)-2c+1=19

c=3

400

2(b-1)+8=5b+3

b=1

500

-3x-4(4x-8)=3(-8x-1)

x=-7