• Menu
  • Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

Funfortainment

Fun - Information - Entertainment - Kids Edition

  • Gaming
  • Tech Tips
  • Latest Mobile Phone Specifications
  • Gardening and Home
  • Interesting Science
  • Gaming
  • Tech Tips
  • Latest Mobile Phone Specifications
  • Gardening and Home
  • Interesting Science

4 Cool Math tricks for making Maths easy [Multiplication and Finding Square]

You are here: Home / Handy Maths / 4 Cool Math tricks for making Maths easy [Multiplication and Finding Square]

November 5, 2019 //  by Jane Sheeba//  Leave a Comment

4 Cool maths tricks for making maths easy

Maths is one of my favourite subjects. And do you know that all of Science is based on Maths?

So let’s embrace Maths.

In today’s post (and the video), I am going to share 4 cool Maths tricks for you to make Maths easy.

 Trick #1 – Multiplying by 15, fast

Would you like to multiply any two digit number by 15 fast? Let’s do it!

Let’s consider 47 – the two digit number. Now we are going to multiply it by 15.

Step 1 – Add Zero to the end of 47. We get 470.

Step 2 – Divide that number by 2. 470/2 = 235

Step 3 – Add the two numbers you got in Step 1 and 2: 470+235 = 705

You can try this with any number!

Trick #2 – Multiplying by 11, fast

For single digit numbers, multiplying by 11 is easy. 3×11 is 33 and 7×11 is 77.

But when it comes to two digit numbers, it can get tricky!

So here’s how to do it easily.

Pick any two digit number – let’s pick 34.

Now separate the two numbers, by leaving some space between them.

3   4.

In between the two numbers, perform addition of the two digits. That is 3[3+4]4. 

Which means 3[7]4. Now put those digits together and that’s your answer 374.

Multiplying by 11 fast

Now what to do if you get a two digit number as a sum in the center? Well, in that case add the number in the tens position to the first digit of the original number.

For example, lets pick 39.

According to the trick we can write this as – 3[3+9]9. 

After adding the digits you get 12 in the middle – 3[12]9. Now you have to add the 1 in the tens position with 3, while keeping the 2.

That is [3+1]29 and the answer is 429!

Multiplying by 11 fast

Trick #3 – Multiply by 9, fast

This is a cool trick.

Let’s pick a number, say 347. 

All you have to do is put a zero at the end of the number – you get 3470. Now subtract the original number from this number.

3470-347 = 3123

Multiply by 9 fast

What we basically do is multiply the number by ten and subtract it once to multiply it by 9. Makes sense right?

Trick #4 – Find the square of a number that ends with 5

Let’s pick a number that ends with 5, say 75.

Find the number that follows the first digit number. 

The number that’s followed by 7 is 8. Now, multiply 7 and 8. We get 56.

And then put 25 in the end – because any number that ends with 5 will have a square that ends with 25.

So the answer is 5625.

Finding the square of a number that ends with 15

That was easy right?

Try out these tricks with different numbers and have fun. 

Apply these tricks when you have to work with big and complicated calculations.

Did you find these Math tricks useful? If so, please share this post and the video with your friends.

Related Posts:

  • Coolpad Cool 6 Detailed Specifications, Price, Camera, Processor - A win in the Rs. 11000 segment?
    Coolpad Cool 6 Detailed Specifications, Price, Camera,…
  • Google Chrome Tips and Tricks You Must Know If You Are A Chrome User
    Google Chrome Tips and Tricks You Must Know If You Are A…

About Jane Sheeba

Fun, information and entertainment. Well, Funfortainment is to fulfil this requirement! Have fun, receive information and get entertained. Don't forget to subscribe to the YouTube channel.

Funfortainment is part of Jane Sheeba Media.

Previous Post: «Why you should say Thank You and how to say it? Why you should say Thank You and how to say it?
Next Post: The health benefits of eating bananas The health benefits of eating bananas»

Reader Interactions

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Primary Sidebar

Follow Me!

  • facebook
  • instagram
  • youtube

Fun, information and entertainment. Well, Funfortainment is to fulfil this requirement! Have fun, receive information and get entertained. Don't forget to subscribe to the YouTube channel.

Funfortainment is part of Jane Sheeba Media.

Got a Question? Submit yours Now!

    Search this site

    Subscribe to our YouTube channel!

    Recent Posts

    • Allepey Boat House Trip | House Boat Tour, Package Details, Menus | Is It Worth It?
    • Thunivu Movie Review | Ajith Kumar | Manju Warrier | Samuthirakani
    • Varisu Movie Review | Vijay | Sarath Kumar | Prakash Raj
    • Hit: The Second Case Movie Review
    • Butterfly (2022) Movie Review | Anupama Parameswaran, Bhumika Chawla

    Categories

    • Dino Hunter Deadly Shores
    • DIY
    • English Language
    • Exams | Entrance Exams | Competitive Exams
    • For Students
    • Fun and interesting stuff
    • Gadgets
    • Gaming
    • Gardening and Home
    • Good habits
    • Handy Maths
    • How do I…?
    • Interesting facts
    • Interesting Science
    • Job Opportunities | Recruitments
    • JT Sniper
    • Killer Bean Unleashed
    • Latest Mobile Phone Specifications
    • Life Tips | Health Tips
    • Miscellaneous | General
    • Mobile Camera Footages
    • Mobile Phone Unboxing
    • Movie Reviews
    • Origami
    • Recipes
    • Reviews
    • Super Mechs
    • Tech News | Gadget News | Apps
    • Tech Tips
    • Uncategorized
    • Vlogs | Travel Vlogs | Reviews Of Places
    • Why should you eat…?

    Copyright © 2023 Funfortainment is part of Jane Sheeba Media.