OK i know the answer is correct bcause it is in the book but i get confused as to how to solve these negative problems. I first came up with 4(-5)= -20 As you can see I added 3+2 and kept the negative sign. How can I remember how to use these rules for solving problems and not get confused? Expecially on tests!!
2007-04-23 14:54:36 · 4 answers · asked by Tanya 1 in Science & Mathematics ➔ Mathematics
When you add two numbers, if the sign is the same, then you add normally and the sign remains the same.
For example.. if it is 5 degrees below zero.. and the temperature drops 3 degrees, the temp is now -8
-5 - 3 = -8
If you add two numbers with opposite signs, then you subtract the numbers and take the sign of the number with the larger absolute value.
For example. If you owe Janet $10, but you pay her back $4 then you only own her $6 now
-10 + 4 = -6
2007-04-23 15:00:26 · answer #1 · answered by suesysgoddess 6 · 1⤊ 0⤋
4(-3+2)= 4(-1)
-3+2 is -1 because if you draw a number line
-5 -4 -3 -2 -1 0 1 2 3 4 5
you find -3
add 2, so move to the right 2
you end up at -1
4(-1) four times negative one
-4
2007-04-23 15:01:08 · answer #2 · answered by Anonymous · 0⤊ 0⤋
just switch the addens but keep the signs!
-3 + 2 = -1
and if you switch it
2 - 3 = -1 !
2007-04-23 15:01:17 · answer #3 · answered by Violet15 3 · 0⤊ 0⤋
The secret is to solve each thing inside of brackets first.
2007-04-23 15:06:55 · answer #4 · answered by ignoramus 7 · 0⤊ 0⤋