Learn how to do a easy magic trick on a calendar. Ask a friend to draw a 3x3 box around any nine of the numbers on the calendar. Almost immediately you can say what the nine numbers all add up to! Amaze your friends with this cool magic trick.

Apple's iOS 26 and iPadOS 26 updates are packed with new features, and you can try them before almost everyone else. First, check Gadget Hacks' list of supported iPhone and iPad models, then follow the step-by-step guide to install the iOS/iPadOS 26 beta — no paid developer account required.
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