Calc Meister

Become unbeatable in mental arithmetic by practicing daily on basic operations. Challenge your abilities by solving "Le compte est bon" to train yourself.

Training exercises to master mental arithmetic, especially basic operations:

Addition

Subtraction

Multiplication

Division (exact quotient and Euclidean division)

Complement (to 100 and 1000)

Vocabulary on mental arithmetic

Le compte est bon

Ideal for 9-10 year old students to reinforce their learning. Or for adults who want to continue to nourish their

mental activity through mental arithmetic.

Several levels available with increasing difficulty.

Depending on the chosen difficulty, numbers can go up to 1000 for additions, subtractions, and complements.

For multiplications and divisions, operations include tables from 1 to 30, multiples of 10 up to 90,

multiples of 5 up to 95 (5, 15, 25, ...)

Higher levels include questions on multiples, divisors, square, cube, gcd, lcm, ...

Suggestions to improve the app based on needs are welcome.