Operations on Rational Numbers


This chapter begins with a review of adding, subtracting, multiplying, and dividing rational numbers in various forms and then moves to evaluating and simplifying algebraic expressions. The chapter concludes with solving equations involving rational numbers, writing such equations from word problems and then solving them, and operations with scientific notation.

What you can expect to learn

After completing these activities you should be able to

1. Add and subtract rational numbers in various forms.
2. Multiply rational numbers in various forms.
3. Divide rational numbers in various forms.
4. Evaluate algebraic expressions when the values of the variables are given.
5. Simplify algebraic expressions with rational coefficients.
6. Solve equations containing rational numbers.
7. Write an equation using information stated in a word problem.
8. Perform arithmetic operations with numbers written in scientific notation.

Activity List