Calculator Tricks

1998
Written by Karl Fulves
Work of Karl Fulves
130 pages (Spiralbound), published by Selfpublished
Illustrated with drawings by Joseph K. Schmidt
Language: English
77 entries
Cover photograph
Creators Title Comments & References Page Categories
Karl Fulves Introduction
i
Karl Fulves Early Indications history of calculator tricks, automatons and tricks with electronics
 		ii
Karl Fulves The Machinery properties of calculators
 		v
Quick Tricks
1
Karl Fulves Instant Karma freely chosen age predicted on calculator
 		1
Karl Fulves Absent Minded entered phone number seems gone on the display of a calculator, then brought back
 		3
Karl Fulves The Eraser Code number is magically removed from memory function of calculator
 		5
Karl Fulves Electron Thoughts number chosen from number cards is magically added to number entered in calculator
 		7
Karl Fulves Cipher Vision part of spectator's phone number is recovered from calculator by rubbing a Joker on it
 		9
Karl Fulves Add Infinitum number entered by performer into calculator, spectator adds a number, result predicted
 		12
Karl Fulves Cheap Trick number entered by performer into calculator, spectator adds a number, result predicted
 		14
Karl Fulves Cheat Method number entered by performer into calculator, spectator adds a number, result predicted
 		15
Karl Fulves Behind The 8-Ball calculator answers questions with a list of possible answers coded by numbers
 		16
Karl Fulves Time Recovered - Time Lost calculation with age and number on die on a calculator, performer divines both numbers by looking at final result
 		17
Karl Fulves A Dead Machine's Tale number that is entered in calculator while it is switched off is recovered
 		19
Force Methods
21
Karl Fulves Swindler's List number forced with calculator and number cards, character reading presentation with a list of character traits
 		21
Karl Fulves Force-O-Matic forcing either 99 or 100 with calculator
 		23
Karl Fulves Guess Your Age (Part One) calculator gag
 		24
Karl Fulves Really Guess Your Age calculator returns age of spectator
 		25
Karl Fulves Guess Your Age (Part Two) spectator guesses age of person on photograph, calculator arrives at the right age with spectator's guesses, baby gag
 		26
Karl Fulves Meant For Each Other two rows of cards, calculation made with calculator arrives at two digit number, those two spots are exchanged in the rows, the rows then match
 		27
Karl Fulves Count-Down Force two spectators note card in pocket by counting down to number arrived at with calculator, secretly the same card
 		29
Karl Fulves Now Hear This number forced with calculator, prediction via object in envelope that corresponds to an ad in newspaper on that page
 		30
Karl Fulves Lock Without Keys number force with calculator, combination lock presentation
 		31
Karl Fulves King's Row number force with calculator, four-digit number used to find the Kings in row of cards on table
 		32
Karl Fulves Square Route square root pushed any number of times on calculator to force a digit, used to force a group of three cards in tabled layout, one of that is then divined, alternative presentation with horse race track prediction
 		33
Karl Fulves Short Term Memory on the memory function of calculators
 		35
Karl Fulves Speak Memory retrieving previously entered number from calculator that is no longer visible on the display
  • Second Method
  • Third Method (application with serial number of bill)
 		36
Karl Fulves Subconscious M+ chosen coin divined via calculation with its date on a calculator
 		39
Karl Fulves Agatha amount of money stolen is divined with calculator
 		41
Karl Fulves Area 51 phone number of the White House appears after spectators entered some numbers in memory of calculator
 		43
Karl Fulves Forgetful Figures several spectators add up numbers on calculators, total divined
 		45
Karl Fulves Recovered Memory month and year entered in memory of calculator by spectator, later recovered, two-memory feature
 		47
Karl Fulves Ghost Writer sum of two numbers appears on calculator, two-memory feature
 		50
Karl Fulves Tic Tac Toe chapter intro
Related to 51
Karl Fulves Little Blue "machine version of tic tac toe" using calculator
 		52
Karl Fulves Blue Streak "machine version of tic tac toe" using calculator
  • Blue Notes
 		55
Karl Fulves Trick Tac Toe using calculator, deck of cards and die
 		58
Karl Fulves Reversing Numbers intro on reversing number by arithmetic procedures
 		60
Karl Fulves Tap A Phone order of digits are changed on display of calculator
 		61
Karl Fulves Cell Phone Finesse number reverses itself on display of calculator
 		62
Karl Fulves Mirror Child three-digit number entered by spectator later comes back reversed on display of calculator
 		63
Karl Fulves Movable Money three digits entered by spectator in calculator, two of them switch places
 		65
Karl Fulves Digits At A Distance three digits chosen from packet of cards, two exchanged, same thing happens on display of calculator
 		66
Karl Fulves Digital Device four digits chosen from packet of cards, two exchanged, same thing happens on display of calculator
 		68
Karl Fulves Other Approaches changing order of digits on calculator
 		71
Karl Fulves Impromptu Reversion changing order of digits on calculator
 		73
Karl Fulves The Exemplar three-digit number chosen with packet of cards is predicted on calculator
Variations 74
Karl Fulves Four-Digit Version four-digit number chosen with packet of cards is predicted on calculator
Inspired by 76
Games Machines Play
77
Karl Fulves Short Cons with calculator
  • Digits From Digits
  • Ciphers Deciphered
  • 625 Bets
  • PIE In Sky
  • A Memorable Date
 		77
Karl Fulves Playing The Numbers spectator is "one off" in betting game with calculator
 		81
Karl Fulves Video Poker two poker hands chosen and entered into calculator, from total the performer divines the two hands
 		83
Karl Fulves Video Dice calculator divines thrown dice numbers
 		85
Karl Fulves Bet A Hundred making a number from 101 to 115 appear on display without touching the number keys, with variations:
  • A Hundred Numbers
  • Rapid Numbers
  • Decimal Dilemma (posed as a problem)
  • Masked Memory (posed as a problem)
  • What's Next?
  • Nuthin
Variations 87
Karl Fulves Lie To The Machine murderer chosen with five cards, calculator used to find him
 		92
Karl Fulves Notes one card in packet of stripper cards secretly reversed, cards removed one by one, performer can feel when reversed card is taken
 		94
Digital Dexterity
95
Karl Fulves Digital Schemes ideas for covering the calculator and disabling further inputs
 		95
Karl Fulves Secret Addition several secret uses of the blindfold process when covering the display
 		96
Karl Fulves Cover Up cover for number key on calculator to help with "Day for any Date"
Related to 99
Karl Fulves The 9's Cover addition trick with calculator
 		100
Karl Fulves Shell Game ideas for shell cover that fits over calculator
 		102
Karl Fulves Keep Off! blocking some keys with a paper card
 		103
Karl Fulves Down Side Up on upside down numbers on calculator
 		104
Karl Fulves Shell Shock number travels from one calculator to another, posed as a problem
 		105
Karl Fulves Knock Off erasing number on display of calculator with actual eraser, posed as a problem
 		105
Karl Fulves Forced Landing spectator names number and one counts to that number on a 4x4 or 5x5 grid, forced, method with calculator
  • Notes & References (credit information)
Related to 106
Mind Matrix
110
Martin Gardner Calculated Swindle variation of the calculator trick with 12345679
 		110
Mel Stover Project A Picture certain number key sequence chosen by spectator on a calculator is divined
 		112
Karl Fulves None Is A Number age divined with calculator calculation
  • Background (credit information)
 		115
Karl Fulves Starring Role movie star chosen from list, matrix force and calculator used for a coincidence
  • Notes & References (credit information)
Related to 118
Karl Fulves And The Winner Is spectators choose four cards face up from group of sixteen cards, values added and number predicted, Matrix Force application
  • Notes & References (credit information)
Variations 122
Karl Fulves Topic Of Capricorn number coincidence with two calculators
 		126
Karl Fulves End Notes calculator tricks in print
 		129
Data entered by Denis Behr, April 2023.