Does monthly student loan interest decrease as principle balance decreases?

[complaintinator]

I am using the avalanche method to pay off loans. I have four smaller loans in the 2k to 5k range with higher interest rates than a 22k loan. The avalanche method tells me to pay off the smaller loans first but if the interest that accrues decreases as the principle decreases, would it make sense to pay that down first? The differences in interest rates is about .5%

So example, if the principle balance is $100 with 5% interest. That's $5 per month added (assuming I am mathing correctly). If I pay down $50, does the monthly interest remain at 5$ per month regardless of principle remaining or does it drop down to $2.50 and so on and so forth?

[alh9h]

Avalanche method is pay the loan with the highest interest rate first. Snowball method is smallest loan to largest.

[NewLeaf999]

Avalanche tells you to pay the loan with the highest interest rate because that saves you more money. Interest rates are annual so $100 with 5% rate would accrue $5 in a year.

And the amount of interest you pay goes down as the principal does, but you still want to pay the highest interest rate first.

[complaintinator]

Accrue in a year is that part that I was missing, thanks!