Have you been at the market, or home improvement center, or perhaps were in the process of purchasing tickets for the upcoming big game, and you were confronted with another dreaded multiplication problem? You have no calculator nearby, and now you must make a quick decision whether or not to make the purchase. Relax, take a deep breath, and learn a new tip today that will simplify your life and increase your confidence!
Here is a scenario for our consideration. The cost of each concert ticket is $28 and you need to purchase 5 tickets to take your family on Friday evening. What is the total cost before taxes and other fees?
Reduce $28 to $14, but at the same time, we must double the 5 to make it 10. Instead of multiplying 5 x 28 in our head, we can work with 10 x 14. Given both scenarios, we can choose the 2nd alternative instead of guessing and hoping we are correct, or perhaps not performing the calculation, and ultimately not having enough money to make the purchase. We conclude that 28 x 5 = 10 x 14, which is 140.
Let's try another one. To paint your new office, you need to purchase 12 gallons that are $15 per gallon on sale. What is the total cost of the paint before sales tax?
Some of us may already know that 12 x 15 = 180. For the rest of us, let us reduce 12 to 6, which is cutting it in half, and also doubling 15 to 30. We now have the choice to multiply 12 x 15, or 6 x 30. We all know that 6 x 3 = 18, therefore 6 x 30 = 180.
Try this new tip today and share this great information with a friend! They will certainly appreciate you!
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