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How could you check the answer to 27-15=12 using addiction a. 27+12=15 b.. 15-12=27. c.12+15=27 d.27+15=12

How could you check the answer to 27-15=12 using addiction a. 27+12=15 b.. 15-12=27. c.12+15=27 d.27+15=12
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how could you check the answer to 27-15=12 using addiction a. 27+12=15 b.. 15-12=27. c.12+15=27 d.27+15=12

User Bram Vanroy
by
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1 Answer

3 votes
You would do 27+12 because your doing inverse operations.
User David Tuite
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