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Tricks And Tips To Do Quick Math

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By Author: Satjit kumar
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Everybody is not great with numbers. But, you deal with them in everyday life. Whether it is shopping, filling gas in the car, reading the menu in a restaurant to understand the price, or anything else – mathematics is part and parcel of human life. Maths improve our analytical and reasoning skills. Would it not be fun if you could solve problems in your head? Mental math is one fantastic way of getting complex number puzzles solved in mind.

Faster mathematical calculations help you save a lot of time. Hence, you can save on paper and calculator usage. It also improves confidence and creativity while strengthening your memory.

Here are some quick tricks to keep up your sleeves and impress people or you can simply use them when you don’t have a calculator. All you need is to identify the appropriate rules for each trick.

Tricks for doing quick math:

Adding large numbers: Adding three or more digits numbers in the head is one challenging task. Here is a simple method to solve bigger number addition.

644 + 238 =?
The best approach is to round them up to the nearest tens and then adding ...
... – 644 becomes 650 and 238 becomes 240.
650 + 240 = 890
Then, find the original problem to determine how much you added to round up.
6 and 2 so, the total is 8.
Now, subtract this difference from the round up total – 890 – 8 = 882.
The total of 644 and 238 is 882.

Subtracting from 1000: Numbers that are larger than 1000 are tricky to solve. Here is a simple method to subtract three-digit numbers from 1000.

You must subtract every digit from nine except the number at units/one’s place value. For example: 1000 – 558 =?
Subtract 9-5 = 4
Again, 9-5 = 4
Now, 10-8 = 2
The answer to 1000 – 558 = 442

Multiplication with 5: 5 is one of the best numbers as it makes all the problem-solving very easy. When you are multiplying any given number by 5, there are two ways to move forward – even numbers are different and odd numbers it is different.
For example – 5 x 4 =?
Take the target number and multiply it by 5, half the number you get, and add a zero to the ones/unit’s place. It is the answer.
So, half of 4 = 2 and add zero to once place value i.e., 20
5 x 4 =20
In case of an odd number, subtract one from the target number and then half it. Add number 5 to this at units/one’s place value. It is the answer.
So, 4-3 = 2, and half of 2 is 1 then, add 5 to this – 15
5 x 3 =15

Conclusion
There are several tricks in mathematics that can help you solve any arithmetic in a few seconds without using any gadget or tool. All you need is to remember the tricks, and numbers couldn’t be more fun.

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