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

2x2 Foil (LIOF) 23 x 12

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2x2 Foil (LIOF) 23 x 12

## 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