Quick Math Hacks

[Ara Kistner]

Wehope you enjoyed this list of ALL the best math hacks and math tricks to help you get through your schoolwork. Be sure to bookmark this page to come back when you need to find a quicker way to answer the problems!

If you want to provide your math skills a major boost, here are 11 useful tricks that you will make you better at math (or at least fake it 'till you make it!), all of which have kick-butt real world applications.

Show off by being the one who doesn't bust out the smartphone to calculate the tip. The quickest way to calculate percentages is to multiply numbers first and worry about the two decimal places later. Remember that a "percent" means a fraction out of 100, which means move the decimal two digits to the left.

If double your money sounds too wimpy and you prefer to up the ante by tripling your money, then use the number 115 instead to estimate the number of years it will take your money to triple. For example, an investment at a 5% growth rate would take about 23 years to triple.

Sometimes to make an apples to apples comparisons between jobs you need to compare the hourly rate of each jobs. For example, if you are able to work the same amount of hours, which job pays better, one with an annual salary of $58,000 or one with a hourly rate of $31?

Instead of using the average formula, you can use the balanced average approach. Think of an average as a target that all items in a list are aiming for and you are trying to balance them out to match that target. For example, let's say that you have 5 exams in your history class and you want to get at least a 92 out of 100. Here are your grades so far:

What grade would you need to get on the fifth exam to get a 92 average? Let's add up how much you exceeded or missed your target on every attempt: - 11 + 6 - 2 + 1 equals - 6. To balance your average you need to make up for those - 6 points by making +6 points on top of your target. You need to make 98 on your fifth exam to reach your target grade of 92. Better start studying!

No matter whether you use 1, 10, 25, 70, or any other other number, the answer is always 3! Putting your fingers on the side of your head like X-Men's Professor Charles Xavier is highly recommended for dramatic effect.

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My favorite trick is the absolute 3 concept... that is picking any number, double the number, add 9 to the number, subtract 3 from the answer, again divide the answer by 2 and subtract the number you picked from the last answer and exactly the answer will be 3... that is fantastic.

Regarding number 12, ANY series of steps that ends with subtracting the original number can be done to always come up with the same number at the end, precisely BECAUSE you're adding (at first) then subtracting (at the end) the original number, leaving the middle operations always the same... and those middle steps can be chosen to come up with whichever final number you want. The only thing to watch out for are division steps, which should be selected such that you get an even division, i.e. with no remainder.

Not everyone is a master at juggling numbers, but the subject isn't as complicated as it seems if you make use of simple maths tricks that will make solving any math problem a piece of cake!

Here are some simple math tricks that can help you perform calculations more quickly and easily. Math tricks help you learn techniques on how to solve questions quickly and can help students develop greater confidence in math. Here is a downloadable PDF to explore more.

It is also important to consider how the concepts of maths are interconnected. What you learn about multiplication can be applied to division, which also applies to factors and multiples, which can be used to understand fractions. Mathematics tricks help find such connections between concepts and help you speed up calculations.

If you multiply 6 by an even number, the answer will end with the same digit. The number in the ten's place will be half of the number in the one's place.This ploy works effortlessly and students can add it to their collection of maths magic tricks!

The 11 rule is one of those magic tricks and methods that can be used to quickly multiply two-digit numbers by 11 in your head.

Separate the two digits in your mind.

Add the two digits together.

Place the number from Step 2 between the two digits. If the number from Step 2 is greater than 9, put the one's digit in the space and carry the ten's digit.

This is probably the most fun tricks in maths -to remember the first seven digits of pi, count the number of letters in each word of the sentence:

"How I wish I could calculate pi."

This becomes 3.141592.

Another math magic tricks and methods to apply to easily multiply two double-digit numbers, is to use their distance from 100 to simplify the math:

Subtract each number from 100.

Add these values together.

100 minus this number is the first part of the answer.

Multiply the digits from Step 1 to get the second part of the answer.

Everyone knows you can count on your fingers. Did you realize you can use them for multiplication? A simple maths magic trick to do the "9" multiplication table is to place both hands in front of you with fingers and thumbs extended. To multiply 9 by a number, fold down that number finger, counting from the left.

With regular practice, students will quickly get a hang of these mental math tricks to do speed math. Math tricks are extremely educative and will make your children extremely confident with numbers like never before!

Cuemath, a student-friendly mathematics and coding platform, conducts regular Online Classes for academics and skill-development, and their Mental Math App, on both iOS and Android, is a one-stop solution for kids to develop multiple skills.Understand the Cuemath Fee structure and sign up for a free trial.

I want to be true to myself. I think I have what it takes to be a consultant, but my problem is math. I am not quick and when somebody stairs at me while asking a math question is like if all my insecurity comes out and just blocks me. I panic and can't do the easiest multiplication (let alone the divisions).

Presenting first your theoretical approach and aligning with the interviewer will not only help to understand if your approach is correct, but also to release pressure.

Also, remember to practice applying fast math in a case. This includes reading charts and receiving information (i.e. writing it down differently based on whether it's clearly 1 dimensional or multi-dimensional information)

Absolutely, there are many tricks to learn to improve your mental math. I would recommend having a look at the basics of numbers to better understand how numbers interact. Additionally, practice 5 mins of mental math a day really helps.

2) Learn how to multiply double-digit numbers really fast. It takes just a couple of hours to learn how to apply this method on paper and a couple of days to start doing these calculations mentally, but it's worth it. Please follow the link for more details: =6ndkkPZYJHo

You can bring back the joy in learning mathematics with the right multiplication tricks. They are handy math calculation strategies that kids can remember and quickly solve some of the more challenging problems for their grade level.

You can have each finger be a digit in ascending order from 1 to 10. If you want to find 9 X 5, then put down the finger numbered 5. The number of fingers before it is the first digit (4), and the fingers after it have the second digit (5). The answer is 45. Even online math games can help kids to get kids interested in math.

You can assign fingers on each hand to go from 6 to 10 in this trick. You can add stickers when starting off using finger multiplication tricks for kids. When calculating 7 x 9, you can join the fingers labeled 7 and 9, and count the number of fingers at the bottom. 6 fingers should be occupying the tens place. Next, you can multiply the fingers on the top, which is 1 and 3, giving you 3. The final answer is 63.

You can visualize your fingers to have imaginary numbers. You can have your thumb be the number 6, the index finger 7, and so on. You can do this on both hands. Now, you need to rotate both hands to face each other and have two fingers touch each other.

One of the best and easy multiplication tricks for large numbers is to find the tens of one of the numbers, and multiply with that quickly. Adding the remaining leftovers will be easier to calculate fully.

If you know quick math tricks, such as multiplication tricks for 7 or rounding up or down, then this will be easy to pull off. You can find the factors of a double-digit number to simplify your calculation.

You can round up or down a three-digit square or a three-digit number multiplied by itself, using this trick. You can round up the first number and round down the second number and then add the distance multiplied.

One of the best ways to get calculating is to simply add the smaller number to each of the digits of the larger numbers through multiplication. Then adding them all up should give you the right answer.

For the table of 8, you can list out the row from 8 x 1 till 8 x 5, and then have the second row be 8 x 6 until 8 x 10 and so on. The tens place will be whole numbers in ascending order, and the units place will be descending even numbers from 8 to 0.

Kids love fast multiplication tricks, especially if they need the right tactics to complete double digit multiplication tables. For 13, you can teach them to remember the multiples of 3, i.e., 3, 6, 9, 12, etc. and remember to count from 1 onwards in the tens place.

There's no way around it - math is a key part of the management consulting selection process. You are going to need to prep your math if you want to have a chance of landing any consulting job, let alone at a top-flight role at an MBB or similar firm.

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