
37 - The Math Puzzle
Use all seven dice once to build an equation that equals 37.
86 daily arithmetic puzzles in your browser, each with a page on how it plays, when it resets and where to play it.

Use all seven dice once to build an equation that equals 37.

Make the target from six numbers, four times a day.

Build a number pyramid where each cell is the sum of the two below it.

Box numbers that add up to 10 and pop them before the board runs out.

Twenty mental math problems, 15 seconds each, one wrong answer ends it.

Twenty mental math problems with three numbers and two operations each.

Start from one number and follow a chain of sums in your head, in 30 seconds.

Fill the cages so each one hits its target with +, ×, − or ÷.

Walk a grid of calculator buttons so your route adds up to the target.

Find the five digits of the day's equation in five tries.

Fill a Latin square so every cage hits its target with +, -, x or ÷.

Cancel cells until every row and column adds up to its target.

Cut a grid of digits into blocks that all add up to the same total.

A daily letter-sum: every letter hides a different digit.

Fill a crossword-shaped grid of equations so every row and column works out.

A crossword whose answers are numbers instead of words.

A crossword without the words: fill a grid of interlocking equations by pure deduction.

Six numbers, one three-digit target, four operations.

Andrew Stuart's numbered daily kakuro on SudokuWiki, graded from Gentle to Diabolical across the week.

Place number tiles so every line adds up to its sum.

Chain number tiles across the gaps so every chain works out to 12.

Clear a hex grid of numbers by building equations from connected cells.

Find the day's hidden 8-character equation in six guesses, Wordle style.

Split a grid of numbers into groups of three that add, multiply or raise to a power.

Pipe the right amount of power from sources to sinks on a 3x4 grid, with three new puzzles every day.

Turn three starting numbers into the day's target with operations like split, merge and reverse, in seven…

Clear the day's apple grid by picking neighbouring numbers that add up to ten.

A crossword of sums: every run of squares must add to its clue.

A daily cross-sum grid: make every run add up to its clue with no repeated digit.

The Boston Globe's daily KenKen in 4x4 and 6x6, harder as the week goes on.

Fill the grid so every cage makes its target with its operation.

Build four-number Fibonacci-like sequences from the day's numbers and find the three that tie together at one…

Chain five numbers and four signs into the day's three-digit target.

Give each letter its own number so every equation and inequality holds.

Three quick daily arithmetic puzzles: make 10, hit a target, find the missing operators.

Slide columns of numbers and signs until every tile has been part of a true equation.

Twenty sums, sixty seconds, the same problems for everyone today.

Reach the day's target by combining six smaller numbers with the four basic operations.

Place the digits 1 to 9 so three across sums and three down sums all come out right.

Move the numbers and signs under the grid into place so every sum works.

A Wordle for sums: find the day's hidden addition or subtraction in five tries.

You know the answer; find the hidden equation that produces it in six tries.

Five numbers, one target, four operations: get as close as you can.

Twenty mental maths problems, one clock, graded against everyone who played today.

The shorter nerdle: find the day's hidden six-character equation, such as 12+3=15, in six tries.

Guess the day's hidden eight-character equation in six tries.

Group neighbouring numbers into islands that hit each target total, with a new board every day.

Swipe through number tiles to hit five target totals, with a new shaped puzzle each day.