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Explain how you used mental math
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Dec 5, 2018
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Explain how you used mental math
Mathematics
middle-school
Agenthost
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Addition is the correct answer
Vishal Chhodwani
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Dec 8, 2018
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Vishal Chhodwani
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Addition, I would use the principles of addition.
Lukas Boersma
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Dec 9, 2018
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Lukas Boersma
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