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Quick Math Tricks: Looking for the Tens
Quick Math Tricks: Thinking of Numbers as Blocks
Quick Math Tricks: Multiplying by 9
Quick Math Tricks: Multiplying by 99
Quick Math Tricks: Using 2 to Simplify
Quick Math Tricks: Multiplying Large Numbers by 5
Quick Math Tricks: Multiplying by 11
Quick Math Tricks: Adding Large Numbers
Quick Math Tricks With Fast Multiplication Techniques
More Fast Multiplication Techniques
Quick Math Tricks: Simplifying Division
Quick Math Tricks: Finding Percents in Your Head
Quick Math Tricks: Squaring Two Digit Numbers Ending in 5
More Quick Math Tricks: Squaring Any 2 Digit Numbers
Quick Math Tricks: Squaring Any Two Digit Numbers
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Learn how to use math tricks by looking for the tens in this free video series. Get mental math tips from … More
Summary: Learn how to use math tricks by looking for the tens in this free video series. Get mental math tips from these online tutoring lessons.
Sean Salazar has taught in both Schools and Community Centers, specializing in Math and English. Working as a tutor he helped students prepare for math exams by teaching ways to...read more
So you think you can add? You think you know you're Calculus? You think it says you plus me equals us? Well, don't count on being able to subtract yourself from this how to video series. Mental math just got multiplied to the next quadrant thanks to the experts at ExpertVillage.
In this free video series, watch as math wizard Sean Salazar teaches you how to do math in your head. Get easy tricks using multiples of five and nine. Learn different approaches to squaring and dividing with bigger numbers. You don't need to get left as a remainder in the sum of great mathematicians, with these easy step by step online tutorials, you can take your math skills to the next power and take your limit to infinity.
"Hi! I'm Sean with Expert Village and I'm going to show you tips and tricks for doing math in your head. Doing math in your head is always easier when working with multiples of 10. This method will show you to turn your equation into multiple of 10 so you can solve it easily. For our example, let's take 4x67. 4x67 is a little hard to deal with, so let's make that 67 into a 70 by rounding it up. 4x70=280. Now, we had to add 3 to 67 in order to round it up to 70, so we want to take that 3 and multiply that by 4 to see how much we went over. 3x4=12. Now we take 280 and subtract it by the amount we went over, which is 12. Our answer is 268. Whenever you're doing math in your head, the most important part is being able to visualize the numbers. The more you practice, the better you're going to get."
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Comments
marcusv said
on 8/2/2008 are there supposed to be videos attached to these slides? This is excellent information. Thanks for sharing it!