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# Subtraction

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only once because it wouldn't be 32 once you subtract 2 from it

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If you only want to work w/ positive #s, 2 can be substracted frrom 32 16 times till you get to 0:

30, 28, 26, 24, 22, 20, 18, 16, 14, 12, 10, 8, 6, 4, 2, 0

Otherwise you can subtract 2 from 32 an unlimited # of times. Just go into negatives:

10, 8, 6, 4, 2, 0, -2, -4, -6, -8, -10

No, u dont understand because if 32-2=30 then u want to get 0 because u cant because u then have to subtract from 30, do u get it?

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• 2 months later...

Lol in response to:

"How many cookies can you eat on an empty stomach?"

After you eat one cookie, it's still going down your throat so its not in your stomach yet ^___^ so you can eat another cookie. Strange logic, but whatever.

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Niiiiiiiiice! First one that has totally stumped me today!

-Em

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(ONCE)32-2=30 ..... thats it end of it!

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I... don't get it haha Im only 12 *looks sheepish* But I AM not you're average 6th grader, no I'm not. My IQ is 130, which is good for my age.

Edited by Jordan F.
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• 3 weeks later...

I could subtract 2 from 32 all day long, 24/7.... and it will always be 30.

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infinity you can just keep doing it as is the right answer

and IQ is irrelivant of age, its always going to be the same. tbh lower than 130 would be my guess.

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once there is onnly one 2 - or 16 times mathmatically speaking

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That reminds me of these riddles:

How many cookies can you eat with an empty stomach? 1!

How many books can fit in an empty schoolbag? 1!

i believe you can take it away infite times when you actually think about it

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you can only take 2 from 32 one time otherwise you are taking 2 away from 30, 28 etc...

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Shoot me for even bothering with this!

32 (-2-2-2-2-2-2-2-2 etc)

Can't find special characters for infinity on my keyboard yet.

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• 2 weeks later...
come on. everyone knowes that 2 can be subtracted from 32 16 times unless you go into the negitives. and for idiots, 32-2=30, as many times as you want DUH

People should read the forum before they post ignorant remarks...

You can subtract 2 from 32 only once.

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Actually, i subract 2 from 32 every time i read this topic, which is when someoe adds a new post. So... lots of times so far.

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One, because every other time, you will be subracting from a number that doesn't equal 32.

Edited by dawgsrule93
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OR JUST DIVIDE 32 BY 2 AND YOU GET 16

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Subtraction - solution

Once. After you subtract 2 from 32, you subtract 2 from 30, from 28, and so on.

This answer is wrong, and I'll prove it:

32-2 = 30

32-2 = 30

There, I proved that you can subtract 2 from 32 at least twice, even using the logic of the original solution.

Wait, I can do it a third time.

32-2 = 30

and a fourth...

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Subtraction - Back to the River Crossing Puzzles

How many times can you subtract the number 2 from the number 32?

Subtraction - solution

Once. After you subtract 2 from 32, you subtract 2 from 30, from 28, and so on.

Once, because then you would be subtracting 2 from a number different than 32.

Clever

17

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This answer is wrong, and I'll prove it:

32-2 = 30

32-2 = 30

There, I proved that you can subtract 2 from 32 at least twice, even using the logic of the original solution.

Wait, I can do it a third time.

32-2 = 30

and a fourth...

The question is, "how many times can you subtract 2 from 32?" Not, how many time can you subtract 2 from 32, and 32?"

There are 2 ways I think of the number 32 in this riddle. One is thinking of the number as 2 blocks. One block with the number 3 and another with the number 2. Only one block exists with the number 2, so it only can be subtracted once.

Another is obviously mathmatical. Subtract 2 from 32 you get 30. The number 32 no longer exists and is replaced with the number 30.There is no part of the riddle that includes additional number 32's.

... i think i just sucked the fun out of this riddle.

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Although rookie1ja's answer is quite clever, in reality you could subtract 2 from 32 an infinite number of times; the answer would be a negative.

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• 3 weeks later...
Subtraction - Back to the River Crossing Puzzles

How many times can you subtract the number 2 from the number 32?

Subtraction - solution

Once. After you subtract 2 from 32, you subtract 2 from 30, from 28, and so on.

I disagree. You can subtract it as many times as you want. Watch:

32-2=30

32-2=30

32-2=30

32-2=30

32-2=30

32-2=30

That time, I felt like doing it 5 times.

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Whoops didn't read all the way through. I'm not the first one to comment that. Sorry, all.

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• 2 weeks later...

WARNING: the following answer is one of those "nitpicky" type answers, but I'm really just trying to inject some humor.

Several people have suggested that the answer is infinite because you can subtract 2 from 32 once (32-2 = 30), and then you can do it again (32-2=30), and then you can do it again...as many times as you want.

There's a flaw in this though - the question asks how many times YOU can subtract 2 from 32. It takes a discreet amount of time to do that calculation, although it is pretty quick. Given that the action takes a discreet amount of time, and YOU will only live for discreet amount of time, there is a limit to the number of times that YOU can subtract 2 from 32.

Assuming that a person devotes the rest of their life to doing just this:

It takes me about 2.5 seconds to say "thirty two minus two equals thirty" at a normal pace, but if you are a speed talker, or if you're doing it in your head, you can certainly do it faster. Even it's 1 second per transaction, it's unlikely that you'll live to be more than 150 years old, and anyone reading this riddle has to be at least 3 years old to actually be able to read it, so:

(150-3)years x 365.25days x 24hours x 60minutes x 60 seconds = 4,638,967,200 times.

So my answer to the question: roughly 4.5 billion times.

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Only once..

32-2=30

there is no 32 now for 2 to be subtracted

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