Casio fx-991ES & fx-100AU Plus 2nd Edition Self-Test Guide
Learn how to activate the self-test mode on Casio fx-991ES & fx-100AU Plus using shift-7-on, then press 9 and cycle displays 🔢.
The Maths Studio
2.8M views • Mar 14, 2025
About this video
Press the "Shift", "7" and "On" Keys at the same time, then press "9", then press shift to cycle through the displays.
© The Maths Studio (https://sites.google.com/view/themathsstudio)
© The Maths Studio (https://sites.google.com/view/themathsstudio)
Video Information
Views
2.8M
Likes
12.1K
Duration
0:12
Published
Mar 14, 2025
User Reviews
4.3
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