1. Chapter Two: I Rational Numbers

2. Comparing and Ordering
So first, you need to be able to change everything to decimals
Then you just line’em up and compare!

3. Comparing
Place <, >, or = between the two rational numbers

4. Ordering
Order each set of numbers from least to greatest

5. Multiplying and Dividing Rationals
Remember: the calculator is your friend. If you give it the correct information, it will give you the correct answer.
This is all about how you put the numbers into the calculator.
Decimals go in normal
Fractions ALWAYS need parentheses.

6. Examples:

7. Examples:

8. Mini Review
p. 85 # 38-44
44.

9. Solving Equations with Rational Numbers
SAME RULES as solving equations!!!!
If it is addition, you need to ____________
If it is multiplication, you need to __________
If it is subtraction, you need to ___________
If it is division, you need to ____________

10. Solving Equations with Rational Numbers
x = -4.12
x – ¾ = -3/8

11. Solving Equations with Rational Numbers
-45 = -5/6 x
-2.65 = -5.3x

12. Solving Equations with Rational Numbers
5/8 x = 2/9
x – (-0.03) = 3.2

13. More practice… Skills Workbook

14. 24 Powers and Exponents exponent: tells you how many times to
multiply the base
by itself 24
base: the number that is
repeatedly multiplied

15. In the calculator…

16. Let’s do this thing! 45 63 a6 78
103 62 91
153