Nathan needs to pay the restaurant bill. The total is $2134. Nathan wants to tip 15%. He has to do this in his head! Try to do this in your head, too. First figure out 10%. Then think what half of that is. Add them together for about 15%. It's okay if you aren't exact. How much will the tip be?'

Answer 1

To find 10% of $2134, we can move the decimal point one place to the left, which gives us $213.40.

Half of $213.40 is approximately $106.70.

Adding $213.40 and $106.70 gives us a rough estimate of the 15% tip, which is around $320.10.

Therefore, the tip will be approximately $320.10.