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Alexandra [31]
4 years ago
6

What is 27- 9.9 using mental math?​

Mathematics
2 answers:
skad [1K]4 years ago
6 0

Answer: 17.7

Step-by-step explanation:

madam [21]4 years ago
6 0

Answer:

  17.1

Step-by-step explanation:

Mentally, you can compute this as ...

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

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