Bellringer 9 16

Go Over Homework

Ch. 1-2 Integers and Absolute Values

Why is this important to me? Integers and Absolute Value Integers can be used to measure temperature and to describe scores in sports

Negative Numbers Are Used to Measure Temperature

Negative Numbers Are Used to Measure Under Sea Level 30 20 10 -10 -20 -30 -40 -50

Negative Numbers Are Used to Show Debt Let’s say your parents bought a car but had to get a loan from the bank for $5,000. When counting all their money they add in -$5,000 to show they still owe the bank.

Opposites Number that are the same distance from zero on a number line but in opposite directions -4 & 4 - C & C -18 & 18

decimals and fractions Integers Integers are the set of whole numbers and their opposites …-3, -2, -1, 0, 1, 2, 3 99,000,000 decimals and fractions ARE NOT INTEGERS

The absolute value of a number is never negative! A number’s distance away from zero on the number line = 9 =7 The absolute value of a number is never negative!

Order each set of integers below from least to greatest. -9, -6, -2, 3 Least Greatest -5, -2, 0, 4 Evaluate each expression below for a = 2 and b = 4. a.) b.) c.) 16 8 10 You try some: a = -5 a.) b.) 11 25

http://www. sheppardsoftware http://www.sheppardsoftware.com/mathgames/Numberballs_absolute_value/numberballsAS2_abs.htm Absolute value http://www.scweb4free.com/train1.html Ordering integers

Textbook page 12-13, problem 1-5 all 6-32 even Homework Time Textbook page 12-13, problem 1-5 all 6-32 even