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Would you care to expound on that?
Let's say you have a $1.75 and you want to buy something that costs $2.25. What is your deficiency as far as the money is concerned?
the difference, 50 cents
There you go. -2.25+1.75=-.5
I know that 0.5 is the correct answer but every time I work it out I get -1.5. I still don't get it.
Can you show me your working please?
but -2 +1 is -1
When you add two numbers with opposite signs, subtract the two numbers while ignoring the signs. Then give the answer the sign of the bigger number.
then why did u add the fives and... what did you do after that??
I subtracted the fives. 5-5=0
so what's a one doing over the 2 in the next column?
I borrowed 1 from the 2. That made the 2 above the 7 into a 12
I think the problem might be that you don't know how to subtract when you have to borrow.
What is 523-358?
ok i got that, what if i put it this way, i should get the same answer but i don't|dw:1328047132639:dw|
When you subtract, you put the bigger number on top.
isn't the positive number the bigger one?
The number with the bigger absolute value. The number that is the bigger if you ignore the signs.
ohhh, didn't know that
Did you notice how I wrote the problem? That's the way you should write it.
okay, thanks a lot
wait, how come the answer is negative, a negative and positive 1 are supposed to cancel each other...
oh never mind :)
sign of the bigger number right? got it
You give the answer the same sign as the number with the greatest absolute value. 2.25 is bigger than 1.75 and 2.25 is negative. So the answer will be negative.