Tool to solve missing number/fill the blanks puzzles. A calculation with missing numbers (blanks), as a addition, substration, multiplication, division, is a mathematical puzzle which consists in finding the missing number or digit.

dCode is free and its tools are a valuable help in games, puzzles and problems to solve every day! You have a problem, an idea for a project, a specific need and dCode can not (yet) help you? You need custom development? Contact-me!

This page is using the new English version of dCode, please make comments !

Tool to solve missing number/fill the blanks puzzles. A calculation with missing numbers (blanks), as a addition, substration, multiplication, division, is 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.

For example, it is useful to calculate digits at extremities, or check individually calculations to the ten digits, or the hundreds digit etc.

How does the missing numbers solver works?

dCode solver allow usual operators like additions +, substractions -, multiplications * and divisions /. It also handles comparators superior and inferior > and <.

The blanks have to be replaced by ? (interrogation marks). There are no limit but above 7 or 8, the calculation will be very long.

1+?=3 is solved with 1+2=3

This solver uses a brute-force method, this means that it tries all combinations and display the one possibles.

Ask a new question

Source code

dCode retains ownership of the source code of the script Missing Numbers Solvers. Except explicit open source licence (free / freeware), any algorithm, applet, software (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any snippet or function (convert, solve, decrypt, encrypt, decipher, cipher, decode, code, translate) written in PHP (or Java, C#, Python, Javascript, etc.) which dCode owns rights can be transferred after sales quote. So if you need to download the Missing Numbers Solvers script for offline use, for you, your company or association, see you on contact page !

dCode uses cookies to customize the site content, analyze user behavior and adapt dCode to your use. Some data is stored and collected for advertising purposes and may be shared with our partners. OK