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

There are 19 squadrons with 5 ships in each squadron. It looks like an attack force! Better call the space station and let them know. But how many ships are there ...

Aww do you wish you had more balloons? You know, you have four balloons there. If you multiply that by ten you’d have 40. Because to multiply anything by ten, you just move the number one place to the ...