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The multiplication tables are probably one of the most fundamental mathematical skills. Aside from addition and subtraction, most people do basic multiplication every day. When you want to make sure you have 3 muffins for each person at dinner, you multiply 3 times 8 to get 24 and then you buy your muffins accordingly. If you're at the store and apples are 3 for a dollar, you know you can afford to get 9 apples for 3 dollars. In fact, we often use basic multiplication so often in real life we often don't realize it. However, many people struggle with some multiplciation problems. It's not uncommon for many people, to be able to give you the result of 5 x 5 with ease, but struggle with 7 x 8. If someone is paying you 7 dollars and hour and you've worked hours--than it's a good idea to know what the answer to 7 x 8 is. A Big Chunk of the Multiplication Tables Is Easy Memorizing the multiplication is easier than it may seem at first. This game only uses single-digit multiplication so there are only 81 different values to remember (9 x 9 = 81). And of course, everyone can quickly master the “ones” and the “zeros” in the multiplication tables. Any number multiplied by itself equals that same number (2 x 1 = 2; 7,383 x 1 = 7,383), and any number multiplied by zero equals zero (2 x 0 = 0; 7,383 x 0 = 0). When it comes to rote memorization of multiplication facts, one of the easiest ways to master them is to remember that multiplication is simply repeated addition. In other words, multiplication is really just a faster way of adding a series of numbers. For example, 3 x 5 actually means that you add 3 together 5 times, or 3 + 3 + 3 + 3 + 3 = 15. Why We LOVE the Communitive Property In addition, remember that the commutative property of multiplication means it doesn’t matter which number comes first when you write the problem – the answer will still be the same. Commutative is just a fancy way of reminding yourself that once you know for example that 4 x 7 = 28, you also know that 7 x 4 = 28. Sometimes when memorizing the multiplication tables seems overwhelming, it is helpful to remind yourself that there is a lot of repetition involved and once you know one set of multiplication facts, you in fact know pieces of other sets as well. There Ain't Nothin' TWO It On to more multiplication facts. Let’s talk about the twos for a moment. The two multiplication facts are one of the easiest to remember because any number multiplied by two is the same as that number added to itself. For example, 2 x 7 = 14, just as 7+7=14. So if you know those addition facts (a number added to itself), you already know all of the two multiplication facts as well! Not to mention one of the easiest ways to remember the twos, which is simply the ability to count up by two – two, four, six, eight, who do we appreciate!? Multiplication by twos!!! For example, starting at the upper right corner of the keypad and going down, we see 3, 6 and 9 (see figure below). Three times 1 is 3, three times 2 is 6 and 3 times 3 is 9. Let's move to the next or middle column on the keypad. starting from the top and moving down we see 2, 5, and 8. Well 3 times 4 is 12 and the last number in 12 is 2. Three times 5 is 15 and the last number in 15 is 5. Three times 6 is 18 and the last number in 18 is 5. Finally starting on the top row of a keypad and going down the far left column you will find the numbers 1, 4, and 7. Well three times 7 is 21 and the last number is 1. Three times 8 is 24 and the last number is 4. Lastly, 3 times 9 is 27 and the last number is 7. So if you look at a keypad vertically going from right to left, top to bottom, it gives you a clue for the multiples of 3 from one times 3 to nine times 3. |
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