Integers Packet (Thanks Laura Benns!).pdf

# One positive and one negative when adding a positive

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one positive and one negative When adding a positive and a negative, some positives and negatives will combine and cancel each other out. Ask: Do I have more positives or more negatives? The answer will determine the sign of the final answer. Then ask, how many more positives do I have than negatives (or how many more negatives do I have than positives?). This will determine the correct number to go with the sign. Subtracting Integers all Subtracting is the opposite of addition. Thus, the easy way to subtract a number is to simply add its opposite . Ex. 6 - -3 = 6 + +3 = 9 Ex. -12 – 7 = -12 + -7 = -19 Multiplying/Dividing Integers When multiplying and dividing, determine the number as with normal multiplication and division. Use the table below, The Kissing Rules, to determine the sign. Phrase to remember…. This x this = this A girl sees a boy she likes (+). She does kiss him (+). She is happy (+). + + + A girl sees a boy she likes (+). She does not kiss him (-). She is sad (-). + - - A boy sees a girl he doesn’t like (-). He does kiss her (+). He is sad (-). - + - A boy sees a girl he doesn’t like (-). He does not kiss her (-). He is happy (+). - - +

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Created by Lance Mangham, 6 th grade teacher, Carroll ISD Activity 3-POW (Guess and Check): Farmer Ann Name: Farmer Ann was chosen to go into town and spend the entire amount of \$100 of a tax return on exactly 100 farm animals – some cattle, some sheep, and some horses. She discovered that sheep cost \$0.50

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