Question

Explain how to use mental math to simplify the following expression.
6x3x5

Answer 1

First,multiply 6*3, which is 18

Answer 2

Then multiply 18 by 5, which is 90

Answer 3

Oh, I would do 6*5 = 30. 30*3 = 90.

Answer 4

That's the same, thought, it's only that the places of the numbers switch.

Answer 5

Yes, but it involves simpler operations.

Answer 6

oh, of course.

Answer 7

Thank you!!!!