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Explain why the numerical expression 4 less than 20 is written as 20-4 and not 4-20
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Explain why the numerical expression 4 less than 20 is written as 20-4 and not 4-20

User Yi Jiang
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When converting English phrases into mathematical expressions/equations, we do things from left to right. That is why it's 4 - 20 instead of 20 - 4.

This rule is applied to division as well.
User Rasheem
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