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?'
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.
To calculate the tip in your head, you can start by finding 10% of the total bill.
To do this, you can move the decimal one place to the left.
10% of $2134 is approximately $213.40.
Next, you can find half of that amount to get an approximate 5% tip.
Half of $213.40 is approximately $106.70.
Finally, you can add the 10% and 5% tip amounts together to get an approximate 15% tip.
$213.40 + $106.70 = approximately $320.10.
Therefore, the tip will be approximately $320.10.