The tutor covers a topic he’s surprised to have missed: using the memory of the Casio fx-260solar.

I always have a Casio fx-260solar around. It’s economical and reverse-entry, similar to the calculators I grew up with. However, I’ve never used its memory function – until today.

To store a value into memory, key the number, then shift mr. Notice the orange Min above mr; I take it to mean “Memory in.”

To recall the value from memory, press mr.

You can add the value on the screen to the one in memory, by pressing m+. Then, the sum is in memory. Similarly, you can subtract the value on the screen from the one in memory by pressing shift m+.

If you want to clear the memory, store 0 in it.

HTH:)

Source:

Casio fx-260solar Operation Manual. London: Casio Electronics Co. Ltd.

Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.