This requires an algorithm: students are taught to stack one number atop another and multiply each digit of the bottom number ...

This is just a question of curiosity. I've been working with some algorithms that use large numbers, i.e. large ints (32 bit), which when multiplied give longs (64 bit). Back in my schools days, I ...

Struggling with mental math? Students from class 6 to 10 now have a clever way to simplify tricky multiplication problems. The “doubling square” method turns large or complex calculations into quick, ...