How do you find 81 - 16 using mental math?

Answer 1

I'd round the numbers to 80 - 15

Answer 2

Just do the problem in your head, don't use any outside sources like a calculator or a paper/pencil. I would also do like Ms. Sue said - round 81 to 80 and 16 to 15.

Answer 3

Your butt plus my bütt ID thesse nuts

Answer 4

Explain it tell how to find 81-16 using mental maht

Answer 5

tell how to find 81-16 using mental math

Answer 6

81-16=

Answer 7

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