What should you do if you are surrounded by 20 lions, 15 tigers and 10 Leopards? Just wait for the...

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Transcript of What should you do if you are surrounded by 20 lions, 15 tigers and 10 Leopards? Just wait for the...

Daffynition Decoder

Twin:

Carrot Juice:

Male Surfer:

Infant Replay

Hare Tonic

Man Over Board

Adding IntegersSame 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.

Rule:

To subtract an integer, add its opposite.

(Make two marks.)

Subtracting Integers

Sections 2.4, 2.5

Multiplying and Dividing Integers

Rules for Multiplying IntegersRules:

Positive x Positive = Positive

Positive x Negative = Negative

Negative x Positive = Negative

Negative x Negative = Positive

+ • + = ++ • - = -- • + = -- • - = +

Find each product.

IF And

Find each product.

Rules for Dividing IntegersRules: 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 2.4, 2.5 odds