August 22: Integers & Absolute Value

1. August 22: Integers & Absolute Value

2. 1.1 Warmup#1-3 Evaluate each expression using the order of operations. 1. 2. 3.

3. Integers • The integers are: • positive and negativewhole numbers; and • zero (which is a whole number but neither positive nor negative). • Examples: • 72 • 0 • –6 • – 325 • Non-examples: • – 3.15 • ½ • π • 5,260.8

4. Integers • Integers are represented in math by using the number line that extends right and left from 0. • Here are some integers on the number line:

5. Comparing Integers • When you compare two integers, the lesser (smaller) number is to the left, and the greater (larger) number is to the right. • For example, –3 is less than 35. • This might surprise you: – 39 is less than – 3.

6. Comparing Integers • Try it yourself. Fill in the blanks with < or >. • *Reminder: • < means “is less than” • > means “is greater than”

7. Comparing Integers • Try it yourself. Rewrite these integers in order from least to greatest:

8. Absolute Value

9. Absolute Value • Try it yourself.What is the absolute value of 2?What is the absolute value of ?What is ?What is ?

10. Absolute Value AND Comparing Integers • Try it yourself.Put the following values in order from least to greatest.