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Mastering Multiplication: Easy Techniques to Simplify Numbers

This guide by Andy Nelson offers effective strategies to simplify multiplication through number decomposition. By breaking down larger numbers into smaller, easier-to-manage factors—like 2, 5, and 10—you can enhance your multiplication skills. The step-by-step instructions and practice prompts help strengthen your understanding of multiplication, ensuring you can tackle problems confidently. With examples and practice exercises, you'll soon find that multiplication doesn't have to be daunting! Perfect for learners at all levels.

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Mastering Multiplication: Easy Techniques to Simplify Numbers

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  1. Multiplication Facts Made Easy Breaking down the numbers to make it easier… Instructions: Press the down arrow on your keyboard to move from step to step. Use the up arrow if you want to go back By: Andy Nelson

  2. The numbers you multiply are called factors. 5 x 2 = 10 8 x 3 = 24 4 x 4 = 16

  3. The answer to a multiplication problem is the product. 6 x 2 = 12 3 x 5 = 15 4 x 6 = 24

  4. Don’t you think it is easier to multiply when one of the factors is a 2, 5, or 10? It is easier…much easier. You most likely have mastered skip-counting by 2, 5, and 10. Go ahead, try it in your head right now, by 2’s, then 5’s, and 10’s. 2, 4, 6, 8, 10, 12, … 5, 10, 15, 20, 25, 30, 35, 40, … 10, 20, 30, 40, 50, 60, 70, 80, …

  5. Since it is easier to skip count by 2, 5, and 10 let’s break down (decompose) a larger number to an easier number to multiply with. • Lets look at the fact 8 x 7 = __ • You could make this problem easier by breaking down (decomposing) the 8 into a 5 and a 3. • Example: 8 = 5 + 3 3 x 7 = 21 Once you break down (decompose) the 8 you multiply each part by the other factor (7). 5 x 7 = 35 Then you add the two products together 35 + 21 = 56

  6. Let’s Practice Try multiplying by decomposing the 12 in this equation: 12 x 6 = __ • 12 = 10 + 2 • Multiply 10 and 2 by the other factor (6) • 10 x 6 = __, and 2 x 6 = __ • Add the products of the above equations to get your answer: • 60 + 12 = 72 • 12 x 6 = 72 Instructions: Complete each step on paper then hit the down arrow

  7. Practice makes perfect • 8 x 8 = ___ • 5 x 8 = ___ and 3 x 8 = ___ • ____ + ____ = ____ • 12 x 9 = ___ • 10 x 9 = ___ and 2 x 9 = ___ • ____ + ____ = ____

  8. Congratulations!

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