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50-20 = 30 30-15 = 15 15-9 = 6 6-6 = 0 If you were to check your work, you would get 51. What did I do wrong???
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1 vote
50-20 = 30

30-15 = 15
15-9 = 6
6-6 = 0
If you were to check your work, you would get 51. What did I do wrong???

User Qiu Zhou
by
7.2k points

2 Answers

3 votes
You should sum the answers and see: 30 + 15 + 6 = 30 + 10 + 5 + 6 = 40 + 5 + 5 + 1 = 50 + 1 = 51.
User Andrewmo
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7.3k points
1 vote
You did everything correctly! I did it myself...all of your subtraction is correct, then I added the answers together and I got 51. Where you trying to get another answer?
User CreatoR
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7.3k points
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