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]]>Math tricks for kids can make the subject more engaging and the fundamental rules easier to grasp. A mathematical problem can be solved in a variety of ways, and knowing the tricks can help you solve it in a few steps. Mathematics is logical, even if it is difficult to learn. As a result, math tricks can assist the child in learning more quickly. Furthermore, if the fundamentals are strong, it is easier to follow math concepts in higher classes. Continue reading to learn some simple math tricks that will pique your child’s interest in the subject.
The square calculation is a difficult task. However, for the set of numbers ending in 5, this may be a lot easier than before. Numbers with two digits can be calculated instantly, but numbers with more than two digits may necessitate the use of additional tables.
Let’s see if we can find the square of the number 95.
Start by writing the last two digits of the answer, which is 25, according to the trick (the last two digits of the square of a number ending with 5 is 25).
In 95, the first digit is now 9. The number after 9 is 10.
To get the answer, multiply 9 by 10 and you’ll get 90.
Write 90 as a prefix to the answer of 25, which we already wrote.
As a result, the total solution is 9025.
The majority of children memorise the multiplication tables up to ten. However, knowing how to quickly multiply with 11 can take this a step further.
Let’s see if we can multiply 45 by 11.
Separate the digits 4 and 5 with a space, for example, 4 [] 5.
Now add the two digits in the centre, such as 4 [4+5 = 9] 5.
That is your final answer 495 = 45 × 11.
Multiplying any number by 9 can be much faster with other multiplication methods.
Consider a number e.g. 754.
Simply add a 0 at the end of the number i.e. 7540 and subtract the original number from it.
7540 – 754 = 6786 which is the result of 754 × 9. That’s how fast it goes!
It might be easier to do it with single digits. But what if you could multiply 15 in the same amount of time? Here’s how to do it.
Let’s see if we can multiply 79 and 15.
Add a zero to the end of the number 79 i.e. 790.
Divide it by two i.e. 790 / 2 = 395.
Add both the results i.e. 395 + 790 = 1185 which is your final answer.
Math Worksheet from Class 1 to 5: Worksheet Class 1st | Worksheet Class 2nd | Worksheet Class 3rd | Worksheet Class 4th | Worksheet Class 5th
Multiplication is just a series of additions put together.
Let’s try 14 × 12 for a change.
As a result, 14 = (2 × 7) i.e. 14 × 12= 2 × 7 × 12
7 multiplied by 12 equals 84.
Then, 84 multiplied by 2 equals i.e. 84 + 84 = 168. Which is a quick response.
This trick will help your child improve his or her multiplication skills. Your child can quickly find the sum of nine numbers on the calendar by creating a 3 × 3 grid around them.
Assume the nine numbers in a three-by-three box are 14 15 16, 21 22 23, 28 29 30.
Multiply the number in the middle of the square by 9 i.e. 22 × 9 = 198.
As a result, the total number in the box is 198.
Finding the percentage of a number can be difficult, but thinking about it in the right terms makes it a lot clearer. For example, to find out what 5% of 235 is, use the following formula:
Find the 10% of the given number 235, by putting a decimal after one digit from the right i.e. 23.5
Divide 23.5 by 2. You’ll get 11.75 which is 5% of the given number.
If you want to know whether a number is divisible by a divisor or not, you can simply use divisibility rules and perform calculations more quickly without doing actual division.
Rules of divisibility:
If the number’s last digit is a multiple of two, it’s divisible by two.
If the sum of all the digits is divisible by three, the number is divisible by three.
If the number’s last two digits are divisible by four, it’s divisible by four.
If the number’s last digit is 0 or 5, it’s divisible by 5.
If the number is even, it is divisible by 6; otherwise, it is divisible by both 2 and 3.
If the sum of all the digits is divisible by nine, the number is divisible by nine.
CBSE Math Worksheet from Class 6 to 10: Math Worksheet 6th | Math Worksheet 7th | Math Worksheet 8th | Math Worksheet 9th | Math Worksheet 10th
Pi, or 3.141592, is a mathematical constant equal to 3.141592. Until you try the below fun math trick, remembering this value can be difficult. Use a pen or pencil to write the following sentence on a blank sheet of paper.
“How I Wish I Could Calculate Pi”
Count the number of letters/alphabets in each word and write it down below the word as shown:
How=3
I = one
4= wish
I= one
Could = 5
9= Calculate
Pi = 2
After the number 3, arrange the numbers with a decimal. It gives you the value of Pi, which is 3.141592.
Tell me how long it will take you to subtract a number from a multiple of 100, such as 1,000, 10,000, or 100,000. Is there a time limit of one minute or less? Let’s see if it’s simple and shortens your calculation time.
E.g. What is the difference between 1000 and 573? (Subtract 1000 from total)
Simply subtract 9 from each digit in 573, then subtract 10 from the last digit.
Step 1: 9 – 5 = 4
Step 2: 9 – 7 = 2
Step 3: 10 – 3 = 7
As a result, the answer is 427 (1000 – 573).
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