MalorieSahr

Jan 13, 2016 at 13:48 o\clock

mental math videos

by: MalorieSahr   Keywords: mental, math

https://www.youtube.com/watch?v=zKJf313iKNo - mental math videos - - So, you’re at a restaurant, and the bill arrives.

Question; can you figure out the 15% tip in your head?

How about calculating the cost of 2 movie tickets, so you know you have enough cash for snacks left over?

Can you figure that out without a calculator?

How about this; If a cashier makes a $12.00 error on your grocery bill, can you realize it right away because you already ran the numbers in your head?

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