Tool/Solver to solve fill the blanks calculations where the operators are missing. A calculation/equation with blanks is a mathematical exercise consisting of finding the missing operation (addition, subtraction, multiplication, division).

Missing Operators Equation Solver - dCode

Tag(s) : Arithmetics, Number Games

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The solver below only finds **missing operation signs**. For a calculation with missing numbers dCode also has a tool:

See also: Missing Numbers Calculator

A calculation with blanks without operator is a calculation with missing operation signs. This is a classic school exercise which consists in finding the possible operations to make the calculation true.

The resolution of calculation with blank (missing operations) consists of finding the possible operations, for example, it is impossible to divide by 0. Also multiplications introduce large numbers, so they must be avoided if the result is small. Non-integer divisions are generally to be avoided.

__Example:__ `1 ? 2 ? 3 = 0` has for solution `1 + 2 - 3 = 0`

__Example:__ `(1 ? 2 ? 3) ? 4 = 0` has for solution `(1 + 2 - 3) * 4 = 0`

dCode also has a similar solver for numbers with missing digits.

The program handles the 4 operators (addition `+`, subtraction `-`, multiplication `*` and division `/`), the equal sign `=`, but also the upper and lower operators `>` and `<`.

The blanks should be replaced with `?` (Question marks).

If there is no comparison sign, then an equals sign will be used for an operator.

The solver uses a brute-force method, ie it tries all combinations and displays possible combinations.

The solver is limited to numbers and does not accept variables or letters in the calculation. Also, parentheses cannot be guessed and must be supplied.

Concatenation is the action of linking elements.

__Example:__ Concatenating the numbers `1` and `2` is creating the number `12`.

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Cite as source (bibliography):

*Missing Operators Equation Solver* on dCode.fr [online website], retrieved on 2024-09-10,

blank,missing,operator,operation,calculation,addition,subtraction,multiplication,number,digit,puzzle

https://www.dcode.fr/missing-operators-equation-solver

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