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Explain how knowing 1 + 7 helps you find the sum of 7 + 1

Explain how knowing 1 + 7 helps you find the sum of 7 + 1
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2 votes
Explain how knowing 1 + 7 helps you find the sum of 7 + 1

User Smartrahat
by
7.6k points

2 Answers

6 votes
It helps you because it is the same the only that is different is that the 7 is first
User Jot EN
by
8.5k points
7 votes
They are backwards so you can use them like that but just not with subtraction

plz give thanks : )
User Jonathan Dursi
by
7.5k points
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