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Q&A for How to Do a Math Magic Trick
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QuestionWhen using method number two, what should I do if the first number is greater than the last?Community AnswerRegardless of which number is first, the guide instructs you to subtract the smaller number from the larger one.
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QuestionWhat is the difference between distance and displacement?Community AnswerDisplacement is the shortest distance between two points whereas distance is the length between two points.
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QuestionWhat do I do if someone doesn't know the shoe size when doing the math magic trick?Community AnswerIf they don’t know their shoe size, then make them pick any shoe size. For example, if they pick shoe size 1, at the end you would tell them they picked shoe size 1.
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QuestionWhat's an easier way to solve fractions?Community AnswerFind the common denominator or the bottom. Let's say: 1/4 + 3/7. The denominators are 4 & 7, and we have to try to make them the same. Multiply 4 by 7 to get 28 and 7 by 4 to get 28 that would be 7/28 + 12/28 which equals 19/28.
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QuestionWhat do I do if they pick a number such as 555 or 777?Community AnswerOn Step 3, it says to make sure they don't have the same number.
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QuestionWhat should I do if I don't want to write 1089 all over again?Community AnswerTo start don't do the trick to the same person and also, just keep the piece of paper you used before and pretend to write it again.
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QuestionWhat if it’s a number like 555 or 666?Emily MaCommunity AnswerIn the instructions, it says to pick different digits. Make sure to tell your volunteer!
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QuestionCan I use European shoe size?HappyWikiCommunity AnswerYes. The shoe size is actually not important. Any number works. It is actually just an input for the formula.
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QuestionWill these tricks work for everyone?HappyWikiCommunity AnswerYes. The calculations the other person is doing is actually just a long formula for getting the original inputs of the age and shoe size back. The second trick is just a formula for getting 1089 with any number.
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QuestionMethod 1 didn’t work for me. How can I fix this?HappyWikiCommunity AnswerTry again. The calculations make up a formula for getting the original inputs of age and shoe size back. If it didn't work, their is a mathematical error that you must've made.
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QuestionMethod 1 worked perfectly, but how can I reveal the magic if I instruct the volunteer at the beginning not to tell me his age and size?SaraCommunity AnswerIn the number 8, he or she will say the numbers, the two first is his or her age and the two last ones will be the shoe size.
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QuestionWhat happens if you pick 100 as a starting number in method 2?SaraCommunity AnswerSince it has two zeros, lest subtract 100 with 001 which is 99, so that or other with 2 zeros doesn't count.
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