Sales Tax and Tipping

One of the easiest (and most applicable) conversations to have when learning more about multiplying decimals is about sales tax and tipping.  Today, we (for real) did just that.  (I say for real because we actually took notes on it today... not just mentioned it in the abstract.)  You'll see pictures of the notes below.

Using the standard 7% sales tax, and a conversation about "socially acceptable" tipping, your children should now be armed to compute an entire dinner check in a snap!  (With or without a calculator!)

In addition to the notes, your children have homework -- eight problems on solely multiplying decimals.  I've posted the answers here below... they can get quite tricky and I want them to have something to check their work with!

1. 106.26

2. 0.3095

3. 596.44

4. 0.08536

5. 3.4595

6. 0.5364

7. 0.3984

8. 118.72