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Why is mental math so important?

Updated: 8/20/2019
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11y ago

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It will help when doing addition and subtraction in day to day life, for example: 'You are walking down the street, when you see a TV that is 40% off' you will be able to work out what the new price is and if you have enough money to buy it.

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11y ago
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Q: Why is mental math so important?
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