<prompt> Human: So being that its a new year, my husband and I are working on catching up on some bad spending habits over the past few years. We have quite a few credit cards and we cannot agree on how we should go about paying them off. I say that we pay the ones with highest interest off first. Period. Then we roll the extra money into the next one on the list. My husband had a different theory, basically that we pay off the highest balance debts first, because even if the interest rate is less, his example 10 vs. 20 we are saving more by getting that debt paid off, because we are paying less interest per month. His theory makes absolutely no sense to me whatsoever, but I cant seem to explain my thinking so that he agrees with me. Can someone help me out here? Thanks in advance!EDIT: He want to pay bills with the highest dollar amount of interest per month, which could be one with a higher balance but lower interest rate.  <response>: His thinking is wrong. Youre correct.So lets say you had 11 loans. 10 for 1000 at 10 and 1 for 1000 at 20. Which would make the most sense to pay off first? No brainer right?There is no difference between 1 loan for 10000 at 10 and 10 loans for 1000 at 10. So even if the loans are different sizes, it doesnt change the math.The rate is what matters. 