19 is only 1 away from 20, so you prefer to start by multiplying 20 times 5, which equals 100. Then we need to take away a squadron of 5, because there are actually only 19 squadrons, not 20. 100 take ...

Four thousand years ago, the Babylonians invented multiplication. Last month, mathematicians perfected it. On March 18, two researchers described the fastest method ever discovered for multiplying two ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. It's called the Gelosia method and it uses a crosshatch, or lattice template, to multiply large numbers ...

Methods similar to this go back thousands of years, at least to the ancient Sumerians and Egyptians. Around 1956, the famous Soviet mathematician Andrey Kolmogorov conjectured that this is the best ...

Listen up ... it's time to test your maths skills! Catriona Shearer presents the Audio Maths Rainbow Quiz. Rainbow audio maths quizzes - Cloud Rating 1 Try out our ...