The method of partitioning into tens, simplifies the multiplication further because ... I could use long division but it’s quite a small number for that. Let’s just break it down.

Now that you've learned to do basic math in Excel, your calculations will never slow you down again. With addition, ...

But math puzzles like this go viral because ... parentheses, exponents, multiplication, division, addition, subtraction. And a good mnemonic device to keep that straight is “Please Excuse ...

Back in the early 1900s, before calculators lived in our pockets, crunching numbers was painstaking work. Adding machines existed, but they weren’t exactly convenient nor cheap. Enter Vilin ...