Faster, harder games with algebraic thinking, number theory and real time pressure.
Other age groups:
Maths Games for Kids (6-10) Maths Games for Juniors (11-14) Maths Games for Teenagers Maths Games for Adults Brain Games for Seniors
All four operations, two-digit numbers
Larger numbers, tighter margins
Times tables under pressure
All four operations
Multiplication and division only
Three-digit numbers, all operations
All four operations
Multiplication and division only
Solve for x in linear equations
Pairs that make one whole
Three and four-digit numbers
Large numbers at speed
Round to one or two decimals
Denominators up to twelve
Larger denominators, closer decoys
Reduce to lowest terms
The everyday set
Eighths, sixteenths and thirds
The full everyday range
What you actually pay in the sale
Find the original number
Digits to Roman, up to 1000
Read the date off the credits
The full range to 3,999
Read binary numbers
Write binary numbers
Base sixteen, the colour-code base
Base eight and mixed conversions
The easiest sutra to learn
25², 35², 85² instantly
Nikhilam: multiply using deficits
Two-digit multiplication in one line
Timetable time
What day will it be?
Remainders as a topic in themselves
The digit-sum tests
The last-two-digits family
Alternating digit sums
Fractions, decimals and percentages
The odd one is only a hundredth away
Everything as a percentage
Fractions against decimals
Cross-multiply to decide
All representations at once
Estimate a multiplication
Estimate big additions
Estimate a quotient
Estimate a percentage of a number
The classic range
Where the tricks matter
Thirty seconds, small grid
Targets to 100
Targets to 200
Ten rounds, mixed sizes
The teaching classic
The full hundred grid
Beyond the hundred square
Six blanks, much less to go on
The Dürer square
Ten blanks on a sixteen-cell grid
Fifteen moves, the classic
Thirty-one moves
Sixty-three moves, for the patient
Type them in order
Type them in reverse
Half a second per digit
The gentle introduction
The standard challenge
Genuinely difficult
Same task, less thinking time
The standard board
Twenty-five squares
Half-second flashes
The standard puzzle
Twenty-five cells
The full-size challenge
Ten timed arithmetic questions that get harder as you go.
Slide and merge tiles to reach 2048.
The classic nine-by-nine logic puzzle.
Race the clock through rapid-fire questions.
Work out the rule and continue the sequence.
Mixed operations against a countdown.
Combine numbers to clear the board.
Every game on YogiCalc is free, runs entirely in your browser, needs no sign-up and saves your best score on your own device. Nothing is uploaded anywhere. They work on a phone, a tablet or a computer.
Looking for something else? The full games library lists all 110 games, and the calculator library covers finance, tax, health and conversion.