Warm Up- Countdown to testing Week #3 Warm Up- Countdown to testing Week #3. Write one sentence explaining what each of your answers mean. Homework: Page 20 #1-5 all, #11-19 all, and #25-50 even

Integers are the set of whole numbers and their opposites.

Use <, >, or = to compare the scores. Example 1 – I Do Use <, >, or = to compare the scores. Aaron’s score is 4, and Felicity’s score is –1. Place the scores on the number line. –5 –4 –3 –2 –1 0 1 2 3 4 5 • • –1 < 4 –1 is to the left of 4.

Use <, >, or = to compare the scores. Example 2 – You Do Use <, >, or = to compare the scores. Fran’s score is –2, and Joaquin’s score is –3. Place the scores on the number line. • –5 –4 –3 –2 –1 0 1 2 3 4 5 • –3 < –2 –3 is to the left of –2.

Place the scores on the number line and read them from left to right. Example 3 – I Do List the golf scores in order from the lowest to the highest. The scores are –4, 2, 5, and –3. Place the scores on the number line and read them from left to right. –5 –4 –3 –2 –1 0 1 2 3 4 5 • • • • In order from the lowest score to the highest score, the scores are –4, –3, 2, and 5.

Place the scores on the number line and read them from left to right. Example 4- You Do List the golfer’s scores in order from the lowest to the highest. The scores are –3, 1, 0, and –2. Place the scores on the number line and read them from left to right. –5 –4 –3 –2 –1 0 1 2 3 4 5 • • • • In order from the lowest score to the highest score, they are –3, –2, 0, and 1.

Both 4 and –4 are 4 units from 0. A number’s absolute value is its distance from 0 on a number line. Absolute value is always positive or 0 because distance cannot be negative. “The absolute value of –4” is written as |–4|. 4 units 4 units –5 –4 –3 –2 –1 0 1 2 3 4 5 –4 = 4 4 = 4 Both 4 and –4 are 4 units from 0.

Example 5- I Do Simplify each expression. A. –8 + 5 –8 = 8 –8 is 8 units from 0. 5 = 5 5 is 5 units from 0. 8 + 5 = 13 B. 5 – 6 –1 = 1 –1 is 1 units from 0.

Example 6 – You Do Simplify each expression. A. –2 + –9 –2 = 2 –2 is 2 units from 0. –9 = 9 –9 is 9 units from 0. 2 + 9 = 11 B. 1 – 1 0 = 0 0 is 0 units from 0.