It is short for remainder: what is left over after dividing as far as you can.

Can the remainder be bigger than the divisor?

No. If it is, the quotient can be one bigger.

Long Division Quest

Divide bigger and bigger numbers and pick the quotient and remainder, written like 81 r 1.

Long Division Quest

0% · Getting ready

A real run of the game, recorded with captions and no sound.

A division sum is shown, like 487 ÷ 6.
Pick the answer from four choices. A remainder is written like 81 r 1, which means 81 with 1 left over.
Early questions divide exactly. Later ones leave a remainder and use bigger divisors.
The clock starts on your first tap and your time is saved. Every day has the same quiz for everyone.

Controls: mouse or touch. Made by CalcoTools.

Multiply your answer back: quotient times divisor plus remainder gives the number you started with.
The remainder is always smaller than the divisor.
Break a big number into parts you know, like 480 and 7.
Check the last digit as a quick test.

What does r mean?: It is short for remainder: what is left over after dividing as far as you can.
Can the remainder be bigger than the divisor?: No. If it is, the quotient can be one bigger.
Is the daily the same for everyone?: Yes, on the same UTC day.