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Why can you use addition to check your substraction
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Why can you use addition to check your substraction

User Tiffany
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They are both the inverse of each other, same as multiplying and dividing.
User JeramyRR
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If you do 7-5 then you get 2. You can check by adding 2+5 to get 7. You do this because this is how you check your work . 
User Shams Reza
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