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Subtracting integer review web

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  • 1. Subtracting Integer Review
  • 2. Bell Ringer c b 0 a a has twice the absolute value of b b is half way between c and 0 c = l -5 l + (-15) a = ? b = ? c = ?
  • 3. Bell Ringer c b 0 a a has twice the absolute value of b b is half way between c and 0 c = l -5 l + (-15) a = 10 b = -5 c = 10
  • 4. Where we were… O Adding Integers Review O Number line O Context O Rules O Same signs = O Opposite signs = O Subtraction O Number Line O Rules O Additive Inverse
  • 5. Where we are… O Students will learn to… O Review subtracting integers.
  • 6. Where we are going… O Adding and subtracting integers quiz on Friday.
  • 7. Homework O Check your homework O Grade yourself on your understanding O B O C O D O I
  • 8. Subtracting Integers Review O Power Write O Is p – q = p + (-q)?
  • 9. -10 - 10 O Write an addition expression O Solve
  • 10. -10 - 10 O Write an addition expression O - 10 + (-10) O Solve O -20
  • 11. -12 - 5 O Write as an addition expression O Solve
  • 12. -12 - 5 O Write as an addition expression O -12 + (-5) O Solve O -17
  • 13. - 30 - 5 O Write an addition expression O Solve
  • 14. - 30 - 5 O Write an addition expression O - 30 + (-5) O Solve O -35
  • 15. 4 - 20 O Write an addition expression O Solve
  • 16. 4 - 20 O Write an addition expression O 4 + (-20) O Solve O -16
  • 17. -10 – (-5) O Write an addition expression O Solve
  • 18. -10 – (-5) O Write an addition expression O -10 + 5 O Solve O -5
  • 19. 5 – (-8) O Write an addition expression O Solve
  • 20. 5 – (-8) O Write an addition expression O 5 + 8 O Solve O 13
  • 21. -5 – (-20) O Write an addition expression O Solve
  • 22. -5 – (-20) O Write an addition expression O -5 + 20 O Solve O 15
  • 23. Mary borrowed $15 from her friend, and then another $12 from her brother. Write a subtraction expression that represent this scenario? -15 - 12 How much does Mary owe? Write it as an integer. -27
  • 24. O LeSean McCoy of the Philadelphia Eagles gained 184 yards rushing in the first game of the season. On the first drive, he gained 8 yards, lost 3 and then lost 3 more. O Write an addition or subtraction problem to show the scenario of the first drive. O How many yards did he gain the rest of the game to reach his total of 184?
  • 25. O LeSean McCoy of the Philadelphia Eagles gained 184 yards rushing in the first game of the season. On the first drive, he gained 8 yards, lost 3 and then lost 3 more. O Write an addition or subtraction problem to show the scenario of the first drive. O 8 – 3 – 3 or 8 + (-3) + (-3) O How many yards did he gain the rest of the game to reach his total of 184? O 182 yards
  • 26. Temperature O The hottest temperature ever recorded in the U.S. was 134°F, measured at Death Valley, California. The coldest temperature, -80°F was recorded at Prospect Creek, Alaska. What is the difference between these temperatures?
  • 27. Temperature O The hottest temperature ever recorded in the U.S. was 134°F, measured at Death Valley, California. The coldest temperature, -80°F was recorded at Prospect Creek, Alaska. What is the difference between these temperatures? O 134 – (-80) = O 134 + 80 = 214
  • 28. Homework O Due on Thursday.

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