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DIVIDING INTEGERS

DIVIDING INTEGERS. IN ALGEBRA COUNTY. 5 DIVIDED BY 6. CAN BE WRITTEN:. 5 DIVIDED BY 6. That’s the best way. What does division mean?. could mean 12 m&m’s divided among six people. Each person has a dixie cup. could mean 6 m&m’s divided among four people. Each person has a dixie cup.

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DIVIDING INTEGERS

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  1. DIVIDING INTEGERS IN ALGEBRA COUNTY

  2. 5 DIVIDED BY 6 CAN BE WRITTEN:

  3. 5 DIVIDED BY 6 That’s the best way.

  4. What does division mean? could mean 12 m&m’s divided among six people. Each person has a dixie cup.

  5. could mean 6 m&m’s divided among four people. Each person has a dixie cup.

  6. DIVISION RULES FOR NEGATIVE NUMBERS ARE THE SAME ASFOR MULTIPLICATION

  7. Therefore: Positive positive = + Positive negative = - Negative positive = - Negative negative = +

  8. The number 1 is very important in Algebra County: 1 -1

  9. Write these in your notes:

  10. “Subtracting” Integers In Algebra County

  11. In Algebra County, we don’t actually subtract. We think of the minus sign as a negative. 3 - 5 We can circle the number with its sign. We have 3 and negative 5

  12. Negative 4 and negative 5 -4 - 5 -9 Negative 1 and 3 2 -1 + 3 7 and negative 2 7 - 2 5

  13. Remember how we put a “1” in places where it is understood to be? 3 - (- 5) 1 3 and negative 1 times negative 5

  14. Neg 4 and neg 1 times neg 5 -4 - (- 5) 1 Neg 1 and neg 1 times neg 3 -1 - (- 3) 1 7 and neg 1 times neg 2 7 - (- 2) 1

  15. Negative times negative is positive. The answer is: Write these in your notes: -4 - (- 5) 1 We multiply before adding -4 + 5 1

  16. Negative times negative is positive. The answer is: We multiply before adding -1 - (- 3) 1 -1 + 3 2

  17. Negative times negative is positive. The answer is: We multiply before adding 7 - (- 2) 1 7 + 2 9

  18. Negative times negative is positive. The answer is: We multiply before adding -3 - (- 1) 1 -3 + 1 -2

  19. Now you have learned how to “subtract”Without subtracting

  20. This is a symbol used in math. It shows that a number is definitely positive and is called the absolute value symbol.

  21. We put numbers or variables inside the lines. = The answer is 3 because the absolute value of anything is positive.

  22. Even if we have a negative inside the absolute value sign: = The answer is 3 because the absolute value of anything is positive.

  23. Here’s an example:

  24. = We add the numbers inside first. =

  25. The End

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