Unit 1 Algebra Review

Rounding Decimals

100

Round 19 to the tens place.

20

200

Round 249.1 to the hundreds place.

200.0

300

Round 3.14159 to the tenths place.

3.10000

400

Round 45.678 to the hundredths place.

45.680

500

Round 12345.6789 to the thousandths place

12345.6790

Operations with Fractions

100

Use your calculator to evaluate the following:  

2/3 + 1/2

1 (1/2)

200

Use your calculator to evaluate the following:  

9/13 - 5/7

-2/91

300

Use your calculator to evaluate the following:  

1/4 * 2(3/4)

11/16

400

Use your calculator to evaluate the following:  

8/9 * 12/13

32/39

500

Use your calculator to evaluate the following:   

3(5/6) + 2(1/4)

6 (1/12)

Solving Equations

100

Solve the following equation for x.

x+1=8

x=7

200

Solve the following equation for x:

2x+3=19

x=8

300

Solve the following equation for x: 

7x-5=30

x=7

400

Solve the following equation for x: 

3(2x-1)=33

x=6

500

Solve the following equation for x: 

3(x+2)-1=32

x=9

Combining Like Terms

100

Combine the like terms to simplify the expression: 

2x-3y+6x+6y

8x+3y

200

Combine the like terms to simplify the expression: 

2xy-xy+1

xy+1

300

Combine the like terms to simplify the expression:

2x+3y-w

Already Simplified

400

Combine the like terms to simplify the expression: 

2ab+5abc-ab+9abc

ab+14abc

500

Combine the like terms to simplify the expression: 

10+9x-7y-y+2-x

12+8x-8y

Substitution to Solve Expressions

100

Solve the following expression by using substitution: 

x+2, for x=7

9

200

Solve the following expression by using substitution:

9-2x, for x=4

1

300

Solve the following expression by using substitution:

4(x+y)-2x

for x=23, y=2

54

400

Solve the following expression by using substitution:

3(2w-y)+wy-1

for w=5, y=2

33

500

Solve the following expression by using substitution:

x^3+xy-2y+1   x=2, y=3

9

Solving Inequalities

100

Solve the following inequality: 

x+1<14

x<13

200

Solve the following inequality for x:

2x-3>15

x>9

300

Solve the following inequality for x: 

-3x<=12

x>=-4

400

Solve the following inequality for x: 

8(x-3)>=40

x>=8

500

Solve the following compound inequality for x:

-12<2x+4<20

-8<x<8

Rewrite the equation in-terms of another variable

100

Rewrite the equation in-terms of b:

x=b+a

b=x-a

200

Rewrite the equation in-terms of x: 

y=a+x

x=y-a

300

Rewrite the equation in-terms of x: 

a=xy

x=a/y

400

Rewrite the equation in-terms of y: 

w=y/z

y=zw

500

Rewrite the equation in-terms of b: 

A= ((bh)/2)

b=((2A)/h)

How well do you know Ms. Hekl?

100

Where did Ms. Hekl go to college?

University of Nebraska at Kearney (UNK)

200

Where did Ms. Hekl go to high school? 

Omaha Central High School

300

What is Ms. Hekl's favorite number?

Pi (3.14159...)

400

How many rings does Ms. Hekl wear everyday? 

4 rings

500

What did Ms. Hekl get a minor in college for? 

Music