2. Event 4: Mental Math 7 th /8 th Grade

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8. Example:PENCILS DOWN

9. Write your answer to the Example now. PENCILS UP

10. Event 4: Mental Math 7 th /8 th grade

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16. Problem 1: PENCILS DOWN (21 ÷ 3 + 7) – (3 2 – 2 x 2)

17. Write your answer to Problem 1 now. PENCILS UP

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23. Problem 2: PENCILS DOWN 425 - 298

24. Write your answer to Problem 2 now. PENCILS UP

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30. Problem 3: PENCILS DOWN 56,210 ÷ 7

31. Write your answer to Problem 3 now. PENCILS UP

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37. Problem 4: PENCILS DOWN Double 30% of 60

38. Write your answer to Problem 4 now. PENCILS UP

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44. Problem 5: PENCILS DOWN 15 ÷ 3 x 5 2 x 3 ÷ 5 x 3

45. Write your answer to Problem 5 now. PENCILS UP

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51. Problem 6: PENCILS DOWN 3(4+5) + 4(5+6) +5(6+7) =

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58. Problem 7: PENCILS DOWN If x = 5 3(x – 8) 2 – 2

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65. Problem 8: PENCILS DOWN 16 – 15 – 14 – 13 – 12 + 11 + 10 + 9 =

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72. Problem 9: PENCILS DOWN What % is 42 of 70?

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79. Problem 10: PENCILS DOWN 54 = x 6 8

80. Write your answer to Problem 10 now. PENCILS UP

81. End of Event 4: Mental Math 7 th /8 th grade PENCILS DOWN