Get Ready for Integers!!! by Mr. Goodwin Table of Contents What are Integers? Positive Integers...
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Transcript of Get Ready for Integers!!! by Mr. Goodwin Table of Contents What are Integers? Positive Integers...
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