Event 4:Mental Math
7th/8th gradeMath Meet ‘11
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Example: PENCILS DOWN
(-8 + 5) + (6 x 6)
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Event 4:Mental Math
7th/8th gradeMath Meet ‘11
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Problem 1: PENCILS DOWN
(17 - 6) + (7 x 4)
Write your answer toProblem 1 now.
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Problem 2: PENCILS DOWN
17 + 19 + 13 - 9 - 3 - 5
Write your answer toProblem 2 now.
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Problem 3: PENCILS DOWN
6(3 + 1) + 6(4 + 2) + 2(3 + 2)
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Problem 4: PENCILS DOWN
√4 + √1
√9 √36
Write your answer toProblem 4 now.
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Problem 5: PENCILS DOWN
(17 + 18 + -8 + 5)______________________________________________
4
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Problem 6: PENCILS DOWN
3 + 1 + 1 = 9_______ ______ _______ _______
4 ? 8 8
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Problem 7: PENCILS DOWN
(1 - 8) + 2(? + 3) = 5
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Problem 8: PENCILS DOWN
(1 + 2 + 3) + (2 + 3 + 4) + (3 + 4 + 5)
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Problem 9: PENCILS DOWN
4 + 9 + 16 +15 20
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Problem 10: PENCILS DOWN
23 + 32 + 22 + 31 + 21
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2
Write your answer toProblem 10 now.
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End of Event 4:Mental Math
7th/8th gradeMath Meet ‘11