Surely you don't think supreme executive power derives from a mandate from the masses?

I know right. I even open the calculator app to verify before committing to memory this nugget.

Barely, only if you choose round and small numbers. 67% of 347 or 347% of 67 which one is easier?

it's very often not useful. Like, what's 6% of 80? See. Still hard.

Also, with the 6% of 50 example it's easy without using this trick.

What's 6% of 100? 6, right? So cut 100 in half to get to 50, and cut the 6 in half to get the 3. Cut the 50 in half again and cut the 3 in half again, and you'll also know that 6% of 25 is 1.5.

Which also lets you know that 6% of 75 is 4.5. the 3 from the 50, plus the 1.5 from the 25. or just know to split the difference between the 3 at 50 and the 6 at 100.

A lot of math is just tricks for a thinking process.

Multiplication is commutative.

50% of 6 == 50/100 x 6 == (50 x 6)/100 == 50 x 6/100 == 6% of 50.

So 50% of 50 is the same as 50% of 50. Both equal 5

taking x% is just multiplying by x/100, and multiplication is commutative. x% of y is just y×x×1/100, which is the same as x×y×1/100

you can also ignore the % and divide by 100 at the end. for example, what's 5% of 5? that might take a minute to work out. what's 25/100? you instantly know it's 1/4

Percentages can be expressed as multiplication and multiplication is commutative (the order doesn't matter).

They said the water could reach up to 50% of its 1.7 meter height before causing problems, panzer tried calculating 1.7% of 50 meters from head, this is the result.

👆 This guy.... fucks?

Wait, you think 0.07 * 250 is easier than 2.5 * 7?

This one irks me to no end.

Help help I'm being irrationalized!

Are you sure you can stand the answer?

4% x 7

= 4% x 100 x 7 ÷ 100

= 4 x 7 ÷ 100

= 28 ÷ 100

= 0.28

6 of 50 is 300. % just means 1/100. That's also a good way to think of it.

Excellent argument. However, I can't count.

Subtraction and division is a lie! Only addition and multiplication are the truth!

I prefer taking 10% and doubling it for a 20% tip.

Take the total, moved the decimal one digit to the left, double it and round to the nearest dollar. I round up at the beginning and end as well which is either close enough or a dollar high if the change is small enough.

$138.72 > 139 > 13.9 > 27.8 > $28

Close enough!

I always just do 10% (easy because you move the decimal one place) and then either double that or add half of it to itself for a 15-20% tip.

Or just take 10% of 138.72 and double the result... 13.87 x 2 = 27.74

Oddly, yes.

Percentages also add together in partials. As in 10%+5%+2% = 17%

So, you start with the 10% by moving the decimal over 83.27 becomes 8.327

Then add half of that (5%) to its self and get 12.49 (rounded)

Then take the 10% number and move the decimal over once more (1%) for 0.833 and double it (from 1% to 2%) and get 1.666 and add that to your running total to get your answer of 14.16 (rounding)

And when I calculator check this I got 14.1559.

Wait...
So 25% off $100... is 100% off $25! Trollface

It’s always as easy as multiplying the two numbers. Obviously some pairs are easier than others. 7x25=175. Not too hard. $1.75 off.

No way! 68% of 120 is 120% of 68, so drop the 100% now i just need to figure out 20% of 68 or do i need 68% of 20 which is really just 6 tens plus 8% so divide 20 by 10, then times 6 which is 12, now we need 8% of 20 which is just 20% of 8 or whichdies