Brain Games to improve concentration/problem grade 9 & 11

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CCSS.3.OA.D.8

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CCSS.7.EE.B.3

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CCSS.8.EE.C.7B

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CCSS.7.NS.A.3

Apple = 2

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CCSS.6.EE.A.1

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CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

If A=1, B=2, C=3, etc until Z=26, what is the SUM of all the letters in Mr. Armstrong's last name (ARMSTRONG)?

Here's a helpful chart:

https://www.worldometers.info/languages/how-many-letters-alphabet/

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CCSS.6.EE.A.2C

Use BODMAS

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

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CCSS.7.NS.A.3