11yr old still doesn't understand how this works
2006-08-22 17:37:25 · 16 answers · asked by ? 1 in Education & Reference ➔ Homework Help
Can anyone explain this using a number line? please
2006-08-22 18:05:07 · update #1
8-5=3
8-(-5)=13 because - - = +
double negative = positive.....its a rule ,if u wanna do it logicaly thn,8-(-5)its -5 so u hav to go opposite,understood?
2006-08-22 17:41:21 · answer #1 · answered by pooh 3 · 0⤊ 0⤋
8 plus 5 is 13
2006-08-23 00:50:52 · answer #2 · answered by LaToya J 3 · 0⤊ 0⤋
because anytime u subtract a negative number, you're adding the opposite of the number behind the subtraction sign
so 8 - (-5) becomes 8 + (+5), or 8+5, which equals 13
2006-08-23 00:40:46 · answer #3 · answered by papa'll kick ur ass 2 · 0⤊ 0⤋
You could think about it like this:
8 + (-1)(-5) = 8 + 5 = 13.
Does this make sense, I is really hard to explain in words without being infront of you or without writing a lot. That may only confuse you more.
2006-08-23 00:44:21 · answer #4 · answered by gtn 3 · 0⤊ 0⤋
When you're subtracting from a negative number it becomes positive. The minus sign and negative sign in front of the five cancels each other out so instead of subtracting you are now adding the two numbers.
2006-08-23 00:40:29 · answer #5 · answered by moma 5 · 0⤊ 0⤋
if you subtract a negative number, it's like adding a positive. If you say "I have 2 apples and someone takes away 1, I have one." but if you say "I have 2 apples and if someone takes away the opposite of 1 (which is negative 1), then they actually gave me an apple, so I have 3.
2006-08-23 00:41:28 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Because minus into minus is plus...so 8 plus 5 becomes 13...
2006-08-23 00:45:18 · answer #7 · answered by Deep 4 · 0⤊ 0⤋
Two negatives make a positive. Basic rule in algebra. Hope this helps!
2006-08-23 00:45:25 · answer #8 · answered by tnblond29 2 · 0⤊ 0⤋
WHEN YOU ARE DEALING WITH SUBTRACTION AND NEGATIVES, YOU ADD THE OPPOSITE. SO IF IT IS 8-(-5) YOU WOULD DO 8+(+5)
2006-08-23 00:40:43 · answer #9 · answered by pinkpoison81 1 · 0⤊ 0⤋
If you subtract a negative number, it is the same as adding that number. If you add a negative number, it is like subtracting that number.
2006-08-23 00:39:52 · answer #10 · answered by Anonymous · 0⤊ 0⤋