Art of Problem Solving: Counting is as Easy as 1, 2, 3

Art of Problem Solving's Richard Rusczyk explores a convenient method for counting lists of consecutive integers.

[veyselsoytoprak]

is this playlist in the correct sequence?

[ange]

This is awesome! you're great at teaching and so smart!

[indiabiologyexplains]

You can also solve that negative decimal sequence by taking the two numbers before 0.7 which gives you your first two numbers and the rest is adding by one, so add 201 more ones and you will get 201.7. So those 201 numbers plus the 2 negative numbers and that 0.7 which equals 204 which is how many numbers in the sequence.

[JanexConfetti]

There are x dollars in that stack of money. NOW GIMME THAT STACK

[Rocky-mecw]

It was always a conundrum to me..thanks!

[FunWithPraKat]

I go to AOPS It makes me smart. Better then Kumon.

[sipdip]

what is he saying at 2:33?
is he saying "sheat?"

[alanluo]

i tried the strategy on alcumus it said i was wrong...

[Cubes]

are we going to talk about his new mexico flag shirt

[unimiaw]

0:56 I'm not gonna watch anymore lol

[jiminbang]

I say there is x number of dollar bills. Pay up

[Monke-zgd]

this video is so skibidi boring that I think it was made in ohio. The grimace shake was better than this, unbeliveable.