6th grade math skills: Find out what you need to know for your student In sixth grade, students focus on connecting their understanding of multiplication and division to ratios and rates.

Everything you need to know to calculate an interest rate with the present value formula.

Credit utilization is the percentage of your total credit you're using. CNBC Select explains how you can calculate your credit utilization rate.

To calculate the effect of compounding on a lump sum, you need to know the amount of the lump sum, the rate of interest for your return, and the number of years you expect to invest.