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Fri. 8/31

Fri. 8/31. 1) Simplify:. 2) Simplify:. 3) Show -7 + 2 using the model. 1.5 Subtracting Integers. Learning Targets. LT #8 : I can subtract integers. Before: 1 2 3 After: 1 2 3 1 = always 2 = sometimes 3 = not yet. I have these questions:. 7NS1.2. LT #8.

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Fri. 8/31

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  1. Fri. 8/31 1) Simplify: 2) Simplify: 3) Show -7 + 2 using the model.

  2. 1.5 Subtracting Integers

  3. Learning Targets • LT #8: I can subtract integers. Before: 1 2 3 After: 1 2 3 1 = always 2 = sometimes 3 = not yet I have these questions: 7NS1.2

  4. LT #8 Method #1 Subtracting Integer Rules (#1) Keep the sign of the firstnumber. Change subtract to add Change the sign of the next number. Then use the rules for adding integers 5 – 6 = -1 5 – 6 Is the same as 4 – (–2) 4 – (–2) = 6 Is the same as -3 – ( 1) -3 – 1 = -4 Is the same as

  5. Learning Targets • LT #8: I can subtract integers (continued). I have these questions: 7NS1.2

  6. LT #8 Method #2 Subtracting Integer Rules Place an addition signimmediatelyafter the first number. If there are two negative signs, it means positive. Then use the rules for adding integers 5+ – 6 = -1 5 – 6 Is the same as 4+– (–2) 4 – (−2) = 6 Is the same as -3 – 1 Is the same as -3+– (1) = -4

  7. Examples (White boards) 5 + (-7) -2 -6 + (-8) -14 -9 + (+9) 0 5 + (+1) 6 -3 + (-5) + (-2) -8 + (-2) -10

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