Activity: Working to 3 decimal places. Complete this interactive activity to learn more about how to subtract decimals and then put your knowledge to the test with a quiz. Back to top.

In the decimal system, the place values are all powers of 10 close powers of 10 The second power of 10 for example is 100. Powers of 10 are 10, 100, 1000 and so on. , including hundreds, tens ...

If you're using Excel to calculate monetary values, then you only have to worry about two decimal places in your numbers. Aligning your numbers to the right automatically lines up the decimal ...