Store and use memories A and B

Save two numbers. Press , type 56, press and then , the teal label above the $\displaystyle y^{x}$ key; the display shows 56.. Type 68, press and , the teal label above the square root key: 68.. Use them in a calculation: press , , then , type 2, press , then , , then , type 4, and press : $\displaystyle 56 \div 2 + 68 \times 4$ is 300..

▶ Watch this step in the video (26:08)