Tool/Solveur to find missing number/fill the blanks puzzles/equations. Calculator with missing numbers (blanks) solves addition, subtraction, multiplication, division as a mathematical puzzle which consists in finding the missing number or digit.
Missing Numbers Calculator - dCode
Tag(s) : Number Game, Arithmetics
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Missing Numbers Calculator
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Find the Missing Numbers Solver
Tool/Solveur to find missing number/fill the blanks puzzles/equations. Calculator with missing numbers (blanks) solves addition, subtraction, multiplication, division as a mathematical puzzle which consists in finding the missing number or digit.
Answers to Questions
How to solve a calculation with blanks?
Solving is similar to a cryptarithm and uses deduction and extraction of parts of the calculation.
Example: ??5 + 42? = 539 => 115 + 424 = 539
Example: 12 + 23 = ? has no solution but 12 + 23 = ?? has for solution 12 + 23 = 35
It is useful to calculate digits at extremities, or check individually calculations to the ten digits, or the hundreds digit etc.
dCode also has a cryptarithm solver (where blanks are letters), a mathematical equation solver or even a countdown game calculation tool.
How does the missing numbers solver works?
dCode solver allow usual operators like additions +, subtractions -, multiplications * and divisions /. It also handles comparators superior and inferior > and <.
The blanks have to be replaced by ? (interrogation marks). There is no limit but above 7 or 8, the calculation will be very long.
Example: 1+?=3 is solved with 1+2=3
Example: 2*?=8 is solved with 2*4=8
This solver uses a brute-force method, this means that it tries all combinations and display the possible ones.
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Source code
dCode retains ownership of the source code of the script Missing Numbers Calculator online. Except explicit open source licence (indicated Creative Commons / free), any algorithm, applet, snippet, software (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any function (convert, solve, decrypt, encrypt, decipher, cipher, decode, code, translate) written in any informatic langauge (PHP, Java, C#, Python, Javascript, Matlab, etc.) which dCode owns rights will not be given for free. So if you need to download the online Missing Numbers Calculator script for offline use, check contact page !
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