Search for a tool
Fill The Blanks Equation Solver

Tool/Solver to solve fill in the blanks operations. A fill in the blank calculation is a mathematical exercise those goal is to find missing elements (numbers or operations) so that the equation is correct.

Results

Fill The Blanks Equation Solver -

Tag(s) : Arithmetics, Number Game

Share dCode and you

dCode is free and its tools are a valuable help in games, maths, geocaching, puzzles and problems to solve every day!
A suggestion ? a feedback ? a bug ? an idea ? Write to dCode!

Team dCode likes feedback and relevant comments; to get an answer give an email (not published). It is thanks to you that dCode has the best Fill The Blanks Equation Solver tool. Thank you.

# Fill The Blanks Equation Solver

## Fill in the Blanks Calculator

 Search for Missing digits (0,1,2,3,...9) Missing operators (+,-,*,/)

## Fill in the Blanks Generator

 Search for Missing digits (0,1,2,3,...9) Missing operators (+,-,*,/)
 Difficulty Easy Medium Hard

Tool/Solver to solve fill in the blanks operations. A fill in the blank calculation is a mathematical exercise those goal is to find missing elements (numbers or operations) so that the equation is correct.

### What is a fill in the blanks equation puzzle?

A fill in the blank puzzle is a mathematical exercise similar to equations solving. It is necessary to find the missing elements (the blanks) in the proposed maths problem so that it becomes correct.

Fill in the blanks with missing digits

Example: Find the missing numbers in the addition 78? + 4? 6 + 123 =? 321 has for solution 782 + 416 + 123 = 1321

Sometimes there is more than one possible solution in operations with blanks.

Example: Find the missing numbers in the subtraction 45 - ?2 = ?3 has 5 solutions including: 45 - 12 = 33 or 45 - 32 = 13

Be sure to indicate a question mark for each digit, else see the equation solver.

Example: 12 + ? = 34 has no solution but 12 + ?? = 34 has one 12 + 22 = 34

Fill in the blanks with missing operators

The principle is the same, except that the question marks must be replaced by one of the 4 mathematical operators (+, -, *, /)

Example: 1 ? 2 ? 3 = 0 has several solutions including 1 + 2 - 3 = 0

If the order of the numbers can be changed, see the countdown numbers solver.

### How to solve a calculation with blanks?

Manual resolution involves identifying the most likely replacement elements. A first approach is to list all the possibilities of each blank, then if the value can not be determined, make attempts until finding the answer. Here are some techniques:

Fill in the blanks with missing digits

Look at the unit numbers, how to add / subtract / multiply them and list the possibilities.

Identify remarkable values: a multiplication by 2 gives an even number, a multiplication by 5 gives a number ending by 0 or 5, and so on.

Identify impossible values: divisions by 0 or non-integers, and so on.

Fill in the blanks with missing operators

Filter operations: division is rare, multiplication introduces large numbers, etc.

Look at the numbers of the units, how to add / subtract / multiply them and list the possibilities.

dCode uses computer techniques that allow you to quickly attempt all combinations.

## Source code

dCode retains ownership of the source code of the script Fill The Blanks Equation Solver 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 released for free. To download the online Fill The Blanks Equation Solver script for offline use on PC, iPhone or Android, ask for price quote on contact page !