Transcript Find each product. - Goshen Community Schools

What do VAMPIRES do on
HALLOWEEN?
Eat, Drink and Be Scary.
What should you do if you are
surrounded by 20 lions, 15 tigers
and 10 Leopards?
Just wait for the
merry go round to stop
and jump off.
Adding Integers
Same Signs:
Add the two numbers and use the same
sign.
Different Signs:
Subtract the two numbers, use the sign of
the number with the larger absolute value.
Subtracting Integers
Rule:
To subtract an integer, add its opposite.
(Make two marks.)
Sections 2.4, 2.5
Positive and Negative Numbers
(Part 3)
Rules for Multiplying Integers
Rules:
Positive x Positive = Positive
Positive x Negative = Negative
Negative x Positive = Negative
Negative x Negative = Positive
+•+=+
+•-=-•+=-•-=+
Find each product.
Find each product.
IF
And
Rules for Dividing Integers
Rules: Same as Multiplying
Positive ÷ Positive = Positive
Positive ÷ Negative = Negative
Negative ÷ Positive = Negative
Negative ÷ Negative = Positive
+÷+=+
+÷-=-÷+=-÷-=+
Divide.
Divide.
Find the average (mean) of
10, –12, 9, 15, –4, 0, –1, and 7.
Homework
Practice
Pizzazz AA-27, AA-30