Crazy math trick to divide a big number by 5! 🤔 #shorts

[trrldxe]

Explanation: Multiplying by 2 then dividing by ten is the same as diving by 5 :)

[jharryandrewsison]

and then the teacher goes "You are wrong because you did not put the solution"

[tshegomalebana]

Man where was this channel when I was in school 😂💔

[I_Love_Llamas]

I just divide by 10 and then multiply the quotient by 2. Pretty much what you did but in reverse

[lDanielHolm]

While this is a neat trick, what is really important is understanding why it works.

[EnhypenxEngene_forever]

If the division is with 25 - Multiply the number by 4 and put decimals from the last 2 digits
If the division is with 125 - Multiply the number by 8 and put decimals from the last 3 places
( I have opted for Vedic Maths in my school)
Example - 233 divided by 25
=233 multiplied by 4 (step 1)
=932
=9.32 (step2)
Hope it helps :)

[JimKirksHandsomeBrother]

Math does not have tricks.
It has methods.

[SHADOWGEN-bx]

This trick literally saved my time in my competitive exam thanks a lot😊😊

[markzebian]

Explanation: 7341 / 5 = 7341 / 10/2 then flip the factor to make it a multiplication: 7341 * 2 / 10 = 14682/10 = 1468.2

[journalingwithmilo]

It’s the same thing for multiplying by 5! You just divide the number by two and move the decimal point to the right once

[kaivalyawaghchaure]

I thought that only I figured out it for the first time 😂😂😂

[yogeshkantsharma]

This is just simple math. Because 5 can be written as 10/2 so 7341÷5 becomes 7341*2÷10 giving 1468.2

[scrumbles]

I was so proud when I figured this out in third grade.

[redcrystal]

Indian maths teacher- you have to show the process

[gaurisinha]

Why this works is because when you take the no., in this case 7341 and multiply it by 2 and divide by 10 ( add a decimal point) the equation becomes :- 7341 × 2/10 and when you simplify 2/10 you get 1/5 and the equation becomes 7341 × 1/5 which is 7341/5 or just 7341 ÷ 5.

[kessama]

W8 thats actually so good..
Not like i will use it tho😅

[DemonzSlayer]

Maths way of saying "double it and give it to another person"

[vennstudios]

the fact that this trick is needed to be shared explains how most people are lazy and somehow not lazy enough to do 2 more procedures

[cirax]

so the reason this works is that 5 = 10/2, meaning you can rewrite it like this: 3 ÷ 5 = 3 ÷ 10/2, when we divide fractions, we can flip it and multiply, so 3 ÷ 10/2 = 3 * 2/10 and a fraction is basically division and can be written like this: a/b = a ÷ b, so 3 * 2/10 = 3 * 2 ÷ 10, go left to right, so 3 * 2 ÷ 10 = 6 ÷ 10 and when we divide by 10, we can just move the decimal point 1 place to the left, so 6 ÷ 10 = 0.6, and if you do it fast, it's exactly what's in the video.

[carmel]

The point being is that there are ways of simplifying arithmetics..
If you need to divide by 2.5, you can first multiply by 4 and then divide by 10
If you need to divide by eight, then you can first divide by two and then divide by two again and then divide by two again. It’s much better to understand the method of what’s going on here rather than remembering how to divide by five