How do I multiply by nine? Simple if you know the trick!

Many learners, both children and adults, have difficulty learning certain multiplication facts. When I meet with them the first time, I typically hear something like, ” I don’t like math.” or ” It don’t understand math.” And they will tell me that they do not know their math facts. What they do not realize is that they know quite a few of their math facts, not all, but many.

If they are working on their multiplication, I will first have them take my math multiplication facts self correcting test. This will SHOW them just how much they DO know.

If they do not know all of their basic math multiplying by nine facts, I will then show them strategies so they can. There are many great websites which do, but one of my favorites is About.com They have short videos on three Tricks for Multiplying by Nine. These strategies, or tricks as they are sometimes called, are also great for anyone looking to learn GED math.

Download multiply by four worksheets to help learn/teach the basic math facts.

Each download is a PDF that contains one worksheet and answer key.