Get Ready for Integers!!!

by

Mr. Goodwin

Table of Contents

• What are Integers?• Positive Integers• Negative Integers• Adding Integers• Examples of Adding In

tegers• Subtracting Integers

• Examples of Subtracting Integers

• Multiplying and Dividing Integers

• Examples of Multiplying and Dividing Integers

• Time for Jeopardy!!!

What are Integers?

• Integers are whole numbers and their opposites. Ex.(0, 1, 2, 3, 4…)

• Integers consist of negative and positive numbers.

• Zero is neither negative nor positive.

Positive Integers

• Integers that are greater than zero.• They will always be to the right of the zero on

the number line.

Negative Integers

• Integers that are less than zero.• They will always be to the left of the zero on

the number line.

Adding Integers

• When adding integers with the same signs, add the two numbers and keep that sign.

• When adding integers with opposite signs, subtract the smaller number from the larger number and keep the sign of the larger number.

Examples of Adding Integers

• (-7) + 8 = 1

• 15 + (-23) = -8

• (-11) + (-5) = -16

• Check out this site for more practice

Adding Integers

Subtracting Integers

• First change problem to addition. Remember the phrase ADD THE OPPOSITE!!! Change the subtraction symbol to addition and the number that follows becomes its opposite.

• Then, follow the rules for adding integers.• Visit this site to get some practice with integers.Magic Squares Game

Examples of Subtracting Integers

• (-14) – (-16) *Add the opposite

(-14) + 16 = 2

• 19 – 11 *Add the opposite

19 + (-11) = 8

Multiplying and Dividing Integers

• Whenever you multiply or divide integers with opposite signs, your answer will be a negative.

• Whenever you multiply or divide integers with the same signs, your answer will be a positive.

Examples of Multiplying and Dividing Integers

• (-6)(-8) = 48

• 25 ÷ (-5) = -5• Check out these sites

Multiplying Integers

Dividing Integers

• 4(-11) = -44

• (-72) ÷ (-9) = 8

Time for Jeopardy!!!

• Make sure you have reviewed your integer facts and you are ready to play.

• Have Fun!!!

• Just click on the link below

Jeopardy Game