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9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
9-4 Subtracting Integers
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9-4 Subtracting Integers

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  • Transcript

    • 1. 9-4 Subtracting Integers Math Notes Number Sense 2.1
    • 2. + - Find 5 - 3
    • 3. + - Find 5 - 3 Think of walking on a number line.
    • 4. + - Find 5 - 3 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0)
    • 5. + - Find 5 - 3 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10
    • 6. + - Find 5 - 3 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10
    • 7. + - Find 5 - 3 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10 STEP 1: Walk forward 5 steps for positive 5.
    • 8. + - Find 5 - 3 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10 STEP 1: Walk forward 5 steps for positive 5.
    • 9. + - Find 5 - 3 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10 STEP 1: Walk forward 5 steps for positive 5. STEP 2: The “-” sign means turn around.
    • 10. + - Find 5 - 3 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10 STEP 1: Walk forward 5 steps for positive 5. STEP 2: The “-” sign means turn around.
    • 11. + - Find 5 - 3 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10 STEP 1: Walk forward 5 steps for positive 5. STEP 2: The “-” sign means turn around. STEP 2: Walk backward 3 steps for negative 3.
    • 12. + - Find 5 - 3 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10 STEP 1: Walk forward 5 steps for positive 5. STEP 2: The “-” sign means turn around. STEP 2: Walk backward 3 steps for negative 3.
    • 13. + - Find 5 - 3 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10 STEP 1: Walk forward 5 steps for positive 5. STEP 2: The “-” sign means turn around. STEP 2: Walk backward 3 steps for negative 3.
    • 14. + - Find 5 - 3 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10 STEP 1: Walk forward 5 steps for positive 5. STEP 2: The “-” sign means turn around. STEP 2: Walk backward 3 steps for negative 3. You end up at +8
    • 15. Something to keep in mind, if you choose to draw it out...
    • 16. Something to keep in mind, if you choose to draw it out... You might have to “borrow.”
    • 17. Something to keep in mind, if you choose to draw it out... You might have to “borrow.” Borrow “zero,” “nothing” - Huh?
    • 18. Something to keep in mind, if you choose to draw it out... You might have to “borrow.” Borrow “zero,” “nothing” - Huh? Remember a + and - cancel each other out leaving “nothing” or “zero.”
    • 19. + Something to keep in mind, if you - choose to draw it out... You might have to “borrow.” + - Borrow “zero,” “nothing” - Huh? + Remember a + and - cancel each other + - - out leaving “nothing” or “zero.” They float invisibly waiting for you to use + ++ them. - + + - + - - + - - -
    • 20. + - Find 5 - 3
    • 21. + - Find 5 - 3 STEP 1: Draw five positives
    • 22. + - Find 5 - 3 +++++ STEP 1: Draw five positives
    • 23. + - Find 5 - 3 +++++ STEP 1: Draw five positives FYI: The “-” means subtract, take away... Can you take away 3 negatives?
    • 24. + - Find 5 - 3+ - + - +++++ STEP 1: Draw five positives + - + - + FYI: The “-” means subtract, take away... - Can you take away 3 negatives? STEP 2: This is when you “borrow” some + -
    • 25. + - Find 5 - 3+ - + - +++++ STEP 1: Draw five positives + - + - + FYI: The “-” means subtract, take away... - Can you take away 3 negatives? STEP 2: This is when you “borrow” some + - FYI: How many do you “borrow?” How many negatives are you supposed to take away? 3
    • 26. Find 5 - 3+ - + - +++++ STEP 1: Draw five positives + - + + - - + FYI: The “-” means subtract, take away... - Can you take away 3 negatives? STEP 2: This is when you “borrow” some + - FYI: How many do you “borrow?” How many negatives are you supposed to take away? 3
    • 27. Find 5 - 3+ - + - +++++ STEP 1: Draw five positives + - + + + - - FYI: The “-” means subtract, take away... - Can you take away 3 negatives? STEP 2: This is when you “borrow” some + - FYI: How many do you “borrow?” How many negatives are you supposed to take away? 3
    • 28. Find 5 - 3+ - + - + + + +++ STEP 1: Draw five positives + - + + - - - FYI: The “-” means subtract, take away... Can you take away 3 negatives? STEP 2: This is when you “borrow” some + - FYI: How many do you “borrow?” How many negatives are you supposed to take away? 3
    • 29. Find 5 - 3+ - + - + + + +++ STEP 1: Draw five positives + - + + - - - FYI: The “-” means subtract, take away... Can you take away 3 negatives? STEP 2: This is when you “borrow” some + - FYI: How many do you “borrow?” How many negatives are you supposed to take away? 3 STEP 3: NOW, take away 3 negatives. How many positives are left?
    • 30. Find 5 - 3+ - + - + + + +++ STEP 1: Draw five positives + - + + FYI: The “-” means subtract, take away... Can you take away 3 negatives? STEP 2: This is when you “borrow” some + - FYI: How many do you “borrow?” How many negatives are you supposed to take away? 3 STEP 3: NOW, take away 3 negatives. How many positives are left?
    • 31. Find 5 - 3+ - + - + + + +++ STEP 1: Draw five positives + - + + FYI: The “-” means subtract, take away... Can you take away 3 negatives? STEP 2: This is when you “borrow” some + - FYI: How many do you “borrow?” How many negatives are you supposed to take away? 3 STEP 3: NOW, take away 3 negatives. How many positives are left? 8 +
    • 32. + + Find 6 - 10
    • 33. + + Find 6 - 10 Think of walking on a number line.
    • 34. + + Find 6 - 10 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0)
    • 35. + + Find 6 - 10 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10
    • 36. + + Find 6 - 10 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10
    • 37. + + Find 6 - 10 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10 STEP 1: Walk forward 6 steps for positive 6.
    • 38. + + Find 6 - 10 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10 STEP 1: Walk forward 6 steps for positive 6.
    • 39. + + Find 6 - 10 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10 STEP 1: Walk forward 6 steps for positive 6. STEP 2: The “-” sign means turn around.
    • 40. + + Find 6 - 10 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10 STEP 1: Walk forward 6 steps for positive 6. STEP 2: The “-” sign means turn around.
    • 41. + + Find 6 - 10 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10 STEP 1: Walk forward 6 steps for positive 6. STEP 2: The “-” sign means turn around. STEP 2: Walk forward 10 steps for positive 10.
    • 42. + + Find 6 - 10 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10 STEP 1: Walk forward 6 steps for positive 6. STEP 2: The “-” sign means turn around. STEP 2: Walk forward 10 steps for positive 10.
    • 43. + + Find 6 - 10 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10 STEP 1: Walk forward 6 steps for positive 6. STEP 2: The “-” sign means turn around. STEP 2: Walk forward 10 steps for positive 10.
    • 44. + + Find 6 - 10 Think of walking on a number line. You are ALWAYS facing right and starting at zero (0) - 10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 + 10 STEP 1: Walk forward 6 steps for positive 6. STEP 2: The “-” sign means turn around. STEP 2: Walk forward 10 steps for positive 10. You end up at -4
    • 45. + + Find 6 - 10
    • 46. + + Find 6 - 10 STEP 1: Draw six positives
    • 47. + + Find 6 - 10 ++ + +++ STEP 1: Draw six positives
    • 48. + + Find 6 - 10 ++ + +++ STEP 1: Draw six positives FYI: The “-” means subtract, take away... Can you take away 10 positives?
    • 49. + - Find 6 - 10 + - + + ++ + +++ STEP 1: Draw six positives + - + - + FYI: The “-” means subtract, take away... - Can you take away 10 positives? + - STEP 2: This is when you “borrow” some
    • 50. + - Find 6 - 10 + - + + ++ + +++ STEP 1: Draw six positives + - + - + FYI: The “-” means subtract, take away... - Can you take away 10 positives? + - STEP 2: This is when you “borrow” some FYI: How many do you “borrow?” How many positives are you supposed to take away? 10, you need 4 more.
    • 51. + + Find 6 - 10 + + + ++ + + + STEP 1: Draw six positives + - + + - - - - FYI: The “-” means subtract, take away... Can you take away 10 positives? STEP 2: This is when you “borrow” some + - FYI: How many do you “borrow?” How many positives are you supposed to take away? 10, you need 4 more.
    • 52. + + Find 6 - 10 + + + ++ + + + STEP 1: Draw six positives + - + + - - - - FYI: The “-” means subtract, take away... Can you take away 10 positives? STEP 2: This is when you “borrow” some + - FYI: How many do you “borrow?” How many positives are you supposed to take away? 10, you need 4 more. STEP 3: NOW, take away 10 positives. What are left with?
    • 53. + + Find 6 - 10 STEP 1: Draw six positives + - - - - - FYI: The “-” means subtract, take away... Can you take away 10 positives? STEP 2: This is when you “borrow” some + - FYI: How many do you “borrow?” How many positives are you supposed to take away? 10, you need 4 more. STEP 3: NOW, take away 10 positives. What are left with?
    • 54. + + Find 6 - 10 STEP 1: Draw six positives + - - - - - FYI: The “-” means subtract, take away... Can you take away 10 positives? STEP 2: This is when you “borrow” some + - FYI: How many do you “borrow?” How many positives are you supposed to take away? 10, you need 4 more. STEP 3: NOW, take away 10 positives. What are left with? 4 -

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