Mathematics still proves to be among the most horrifying subjects that kids encounter. But with a bunch of simple mathematical tricks, children can pull of mathematics hastily and smoothly. There are too many of them. However for now, we will see 9 of them making student life easier with little bit of math homework help.
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Today we will be seeing how to make use of basic arithmetic operators such as division, multiplication, addition, and subtraction, to master the art of dealing two or more numbers with ease. In most cases, they prove to be useful as we deal with these operators in our day to day life every now and then. Let us not wait anymore and jump to our discussion.
Multiplying any 2 digit number with 11
Let us say we want the result for 52 multiplied by 11.
We will add up both numbers and put in between.
If in case the two digits add up to give another two digit number then keeping the second digit intact we will carry forward the first digit to add up to the first digit of the original number.
Multiplying any 2 digit number ending with 5 with itself
With this method, you can get the square of any 2 digit number ending with 5.
Let us say we want square of 25.
We will multiply first digit with its successor digit and put 25 towards the end. That’s it!
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Multiplying n-digit number with 5
Sometimes it can be a real big deal to multiply large numbers. However, in this method we multiply large numbers with 5 instantly to get result.
For this, just divide the number by 2. If remainder if zero, put zero to the division result. If remainder is anything other than zero, simply put 5 to the division result.
Multiplying any number by 4
It is a very simple trick wherein instead of multiplying by 4 directly, you multiply that number with 2 twice.
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Calculating % of any number
First multiply the top two numbers and then put decimal two places away from the last digit.
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Multiplying 2 large numbers
When you have to multiply two large numbers, try to round it off in multiples of 10, 100, 1000… and so on. Then cross multiply and add.
Dividing any number by 5
It is highly simple. Just multiply the number by 2 and move decimal one place away from last.
Subtracting any number from 1000
Subtract all digits individually from 9 except for the last digit that you subtract by 10.
General multiplication rules
Distribute multiplication into addition and subtraction operators to make things easier.
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Summing up…
An expert online math tutor can help kids out with far more innovative techniques then we just saw. Every expression in mathematics has a secret technique with which it can be solved easily and rapidly. However, it comes from loads of practice that only online math tutoring can help you out with. Mathematics is full of numbers, operators, expressions, equations, formulas, concepts, and what not. What we just saw is how you can create magic using the basic arithmetic operators. In our future articles we will be focusing more on how you can create magic with other mathematical concepts used in day to day life. Even you can suggest us techniques that you know, which we will feature in our future articles. Just leave your comments and let us know what you think about our comprehensive article.
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