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To check multiplication of single digits by longer numbers with playing cards: We’re going to use what I call “numbers crunching” to check. That is the same as using the nines-remainders. You do know how to get the nines-remainder of a number, don’t you? It’s very simple, but it takes a bit of explaining. [...] Math Mojo has got some surprises for you. New lessons on how to improve your basic math skills, and videos! Professor Homunculus is getting his Video Mojo workin’ to bring you some great new stuff. The first set of videos will be about how to practice multiplication using playing cards. So grab a deck [...] A girl recently asked: “I need help learning multiplication. Can you help me learn to multiply?” Professor Homunculus replied: I have lots of questions to ask you, but first, here is something you can do right away to help you learn multiplication by 2, 3 and 4: Get out a deck of cards. Make sure [...] Do you want to understand and be able to multiply in order to: a) help you (or your child) with life in general and the education that counts, or b) just help you (or your child) pass the next math test? If your answer was b, you just saved yourself some time and effort for [...] |
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