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What is 27- 9.9 using mental math?​
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4 votes
What is 27- 9.9 using mental math?​

User Pooya Saberian
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2 Answers

5 votes

Answer: 17.7

Explanation:

User Jacott
by
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0 votes

Answer:

17.1

Explanation:

Mentally, you can compute this as ...

27 -(10 -0.1) = (27 -10) +0.1 = 17.1

User Sharene
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