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Subtracting integers. How do you subtract 2 minus negative 1?

2007-12-03 07:49:27 · 14 answers · asked by Panda7 1 in Science & Mathematics Mathematics

14 answers

what you said is .. 2 - (-1)

as we have have two negatives together it becomes positive and it is re-written as
2+1 which is 3

2007-12-03 07:53:41 · answer #1 · answered by Appu 2 · 0 0

2+1 = 3

2007-12-03 07:55:39 · answer #2 · answered by drmobaid 2 · 0 0

2 - (-1)
= 2 + 1
= 3

2007-12-06 09:47:25 · answer #3 · answered by Rayan Ghazi Ahmed 4 · 0 0

Think of subtraction as adding the opposite of a number, a - b = a + (-b).
The opposite of -1 is 1, so, we have:
2 - (-1) = 2 + (1) = 3.

2007-12-03 08:05:19 · answer #4 · answered by S. B. 6 · 0 0

think of it as when your subtracting negative your cancelign them out and turn it to positive 2 - -1 = 2+1 so you get 3

2007-12-03 07:53:13 · answer #5 · answered by ViewtifulJoe 4 · 0 0

Note that a - in front of a number that is already negative makes it positive.

Therefore 2 - (-1) is the same as 2+1.

So you get 3.

2007-12-03 07:57:02 · answer #6 · answered by Nitro 5 · 0 0

2 - (-1) =

2 + 1 =

3

Double negative = positive

2007-12-03 07:56:43 · answer #7 · answered by Kate the Great 5 · 0 0

You reverse the sign and add:

2 - (-1)

= 2 + 1

= 3

2007-12-03 07:52:39 · answer #8 · answered by Puzzling 7 · 0 0

2-(-1)
2+(-1*-1)
2+(+1)
2+(1)
2+1
3
A negative and a negative make a positive, so
5-(-3)=5+3=8

2007-12-03 07:53:57 · answer #9 · answered by Mic K 4 · 0 0

2 minus neg. 1 is the same as:

2 - -1

two negatives become as plus, so:

2 - -1 is the same as

2 + 1

which is 3

2007-12-03 07:52:41 · answer #10 · answered by grompfet 5 · 0 0

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