Read The Best Mental Math Tricks

The Best Mental Math Tricks

Presh Talwalkar

4.9/5 (9898 ratings)

Description:Can you multiply 35x35 in your head? That is, can you square the number 35?There's a mental math trick so that you can easily square any number ending in 5. Here's how the trick works.Look at the first digit of 35, which is the number 3. We add one to that number, 4, and then multiply those two numbers together. So we have 3x4 = 12, and these are the leading digits of the answer.Now we just write 25 as the last two digits, so we get 1225. And that's it! We have calculated 35 squared is 1,225 in an amazingly simple way!Math does not have to be hard. The Best Mental Math Tricks is a collection of methods that can help you become a lightning calculator. You will learn how to solve daily problems like calculating percentages and figuring out which day your birthday is every year. Then you will learn how to square numbers, multiply numbers, divide numbers, and even solve complex problems like calculating the cube root of numbers in your head!Each method is explained in detail with numerous examples. Every method is mathematically justified with a formal proof. Each section also contains practice problems accompanied with complete solutions so you can try the method and check your work.We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with The Best Mental Math Tricks. To get started finding The Best Mental Math Tricks, you are right to find our website which has a comprehensive collection of manuals listed.
Our library is the biggest of these that have literally hundreds of thousands of different products represented.

Pages: 172

Format: PDF, EPUB & Kindle Edition

Publisher: —

Release: 2015

ISBN

Description: Can you multiply 35x35 in your head? That is, can you square the number 35?There's a mental math trick so that you can easily square any number ending in 5. Here's how the trick works.Look at the first digit of 35, which is the number 3. We add one to that number, 4, and then multiply those two numbers together. So we have 3x4 = 12, and these are the leading digits of the answer.Now we just write 25 as the last two digits, so we get 1225. And that's it! We have calculated 35 squared is 1,225 in an amazingly simple way!Math does not have to be hard. The Best Mental Math Tricks is a collection of methods that can help you become a lightning calculator. You will learn how to solve daily problems like calculating percentages and figuring out which day your birthday is every year. Then you will learn how to square numbers, multiply numbers, divide numbers, and even solve complex problems like calculating the cube root of numbers in your head!Each method is explained in detail with numerous examples. Every method is mathematically justified with a formal proof. Each section also contains practice problems accompanied with complete solutions so you can try the method and check your work.We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with The Best Mental Math Tricks. To get started finding The Best Mental Math Tricks, you are right to find our website which has a comprehensive collection of manuals listed.
Our library is the biggest of these that have literally hundreds of thousands of different products represented.

Special Offer | $0.00

Special Offer! | $0.00

The Best Mental Math Tricks

The Best Mental Math Tricks

More Books

The Joy of Game Theory: An Introduction to Strategic Thinking

The Joy of Game Theory: An Introduction to Strategic Thinking

Multiply Numbers By Drawing Lines

Multiply Numbers By Drawing Lines

Math puzzles: classic riddles in counting, geometry, probability, and game theory

Math puzzles: classic riddles in counting, geometry, probability, and game theory

40 Paradoxes in Logic, Probability, and Game Theory

40 Paradoxes in Logic, Probability, and Game Theory

Math Puzzles Volume 2: More Riddles And Brain Teasers In Counting, Geometry, Probability, And Game Theory by Presh Talwalkar (2015-10-08)

Math Puzzles Volume 2: More Riddles And Brain Teasers In Counting, Geometry, Probability, And Game Theory by Presh Talwalkar (2015-10-08)

Summary of Presh Talwalkar's The Joy of Game Theory

Summary of Presh Talwalkar's The Joy of Game Theory

Mind Your Decisions: Five Book Compilation

Mind Your Decisions: Five Book Compilation

Math Puzzles Volume 3: Even More Riddles And Brain Teasers In Geometry, Logic, Number Theory, and Probability

Math Puzzles Volume 3: Even More Riddles And Brain Teasers In Geometry, Logic, Number Theory, and Probability