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Hide information inside your pocket calculator.

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Most calculators come with a sheet of paper for functions. If possible, write any formulas or problems on this sheet of paper. Teachers won't be suspicious because they will think you're figuring out a question!    {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/0\/0c\/Cheat-on-a-Test-Using-Electronics-Step-2Bullet1.jpg\/v4-460px-Cheat-on-a-Test-Using-Electronics-Step-2Bullet1.jpg","bigUrl":"\/images\/thumb\/0\/0c\/Cheat-on-a-Test-Using-Electronics-Step-2Bullet1.jpg\/aid1850965-v4-728px-Cheat-on-a-Test-Using-Electronics-Step-2Bullet1.jpg","smallWidth":460,"smallHeight":322,"bigWidth":"728","bigHeight":"510","licensing":"<div class=\"mw-parser-output\"><p>License: <a rel=\"nofollow\" class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/3.0\/\">Creative Commons<\/a><br>\n<\/p><p><br \/>\n<\/p><\/div>"}