Nathan needs to pay the restaurant bill. The total is $21.34. 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 figure out 10% of $21.34, we move the decimal point one place to the left, making it $2.134.
To find half of $2.134, we divide it by 2, resulting in $1.067.
Adding $2.134 and $1.067 together gives us about $3.20.
Therefore, the tip will be approximately $3.20.
To find 10% of $21.34, we can move the decimal point one place to the left, which gives us $2.13.
To find half of that, we divide $2.13 by 2, which results in $1.065 approximately.
Finally, we add $2.13 and $1.065 together, which gives us a tip of approximately $3.195.
Therefore, the tip will be around $3.20.