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Depdendent Variable

Number of equations to solve:

Equ. #1:

Equ. #2:

Equ. #3:

Equ. #4:

Equ. #5:

Equ. #6:

Equ. #7:

Equ. #8:

Equ. #9:

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Enter inequality to graph, e.g. y<3x^2-1

Dependent Variable

Number of inequalities to solve:

Ineq. #1:

Ineq. #2:

Ineq. #3:

Ineq. #4:

Ineq. #5:

Ineq. #6:

Ineq. #7:

Ineq. #8:

Ineq. #9:

Solve for:

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Addition and Subtraction of Rational Numbers

Learning Objectives
• To understand and to be able to add and subtract rational numbers.
• To understand and be able to use fractions and mixed numbers.
• To be able to estimate with rational numbers.

Testing Your Knowledge
1. Compute each of the following.

2. Change each of the following fractions to a mixed number.

3. Change each of the following mixed numbers to a fraction in the form a/b, where a and b are
integers.

4. A class consists of 2/5 freshmen,1/4 sophomores,1/10 juniors, and the rest seniors. What fraction
of the class is seniors?

5. A -inch board is cut from a inch board. The saw cut takes up 3/8 of an inch. How
much of the inch board is left after cutting?

6. Suppose that a large pizza is divided up into 3 equal size pieces and a small pizza is divided
up into 4 equal size pieces and you receive one piece from each pizza. Does 1/3+1/4 represent
the amount that you received? Why or why not.