2x2 Foil (LIOF) 23 x 12 - PowerPoint PPT Presentation

2x2 foil liof 23 x 12 n.
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2x2 Foil (LIOF) 23 x 12

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  1. The Rainbow Method Work Backwards 2x2 Foil (LIOF)23 x 12 Used when you forget a rule about 2x2 multiplication 1) The last number is the units digit of the product of the unit’s digits 2) Multiply the outside, multiply the inside 3) Add the outside and the inside together plus any carry and write down the units digit 4) Multiply the first digits together and add and carry. Write down the number 2(1) 2(2)+3(1) 3(2) 2 7 6 276

  2. FOIL DrillDepending on how much you would like to practice, number your notebook paper 1 thru 100. For the next slides you will have 6 seconds per slide. Try doing the questions mentally.

  3. At any point you want to stop, go to the very end of this presentation to check your answers.Award yourself 5 points for every correct answer. Deduct 4 points for every wrong answer, scratched out answer, skipped problem, and problem you had scratch work.

  4. FOIL DrillThe highest possible score will be 500, the lowest -400.The more you practice the better you will get! Have FUN!!

  5. 1) FOIL 33 x 88

  6. 2) FOIL 29x 36

  7. 3) FOIL 34x 58

  8. 4) FOIL 14 x 88

  9. 5) FOIL 73x 82

  10. 6) FOIL 36x 19

  11. 7) FOIL 77x 47

  12. 8) FOIL 27x 54

  13. 9) FOIL 59x 54

  14. 10) FOIL 52x 88

  15. 11) FOIL 36 x 86

  16. 12) FOIL 63x 23

  17. 13) FOIL 33 x 14

  18. 14) FOIL 52x 97

  19. 15) FOIL 74x 42

  20. 16) FOIL 53x 39

  21. 17) FOIL 38x 76

  22. 18) FOIL 49x 91

  23. 19) FOIL 31x 46

  24. 20) FOIL 14x 99

  25. 21) FOIL 53x 57

  26. 22) FOIL 96 x 22

  27. 23) FOIL 85x 18

  28. 24) FOIL 67x 18

  29. 25) FOIL 97x 58

  30. 26) FOIL 43x 44

  31. 27) FOIL 56x 16

  32. 28) FOIL 37x 62

  33. 29) FOIL 34x 57

  34. 30) FOIL 51x 38

  35. 31) FOIL 31x 14

  36. 32) FOIL 19x 23

  37. 33) FOIL 51x 59

  38. 34) FOIL 31x 21

  39. 35) FOIL 84x 13

  40. 36) FOIL 41x 21

  41. 37) FOIL 66x 29

  42. 38) FOIL 74x 63

  43. 39) FOIL 68 x 93

  44. 40) FOIL 24x 21

  45. 41) FOIL 53x 82

  46. 42) FOIL 63 x 41

  47. 43) FOIL 96 x 28

  48. 44) FOIL 16x 93

  49. 45) FOIL 39x 92

  50. 46) FOIL 37x 46