0
First of all think of the table.
+/-
-
- = +
-
- = -
-
- = -
-
- = +
NB If no sign is shown read it a plus(+)
So -2 + -2 . The second term of + - 2 is read as '-'
Hence
-2 - 2 = -4
Think of the number line .... -4 -3 -2 -1 0 1 2 3 4 ....
If you move to the left you subtract, if you move to the right you add.
This first number is '-2' , So go to ;-2; on the number line. From there we are subtracting, so move to the left, by '2' places. You 'land on' '-4' ,which is the answer
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How do you add and subtract negative and postitive numbers?
If both numbers are positive, simply add them as you learned in 4th grade. If both numbers are negative,simply add them but add a minus to the answer. If one is positive and the other negative, ignoring the signs,subtract the smaller from the larger and add the sign of the larger to your answer.
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Because when you add any negative numbers, the sum will also be a negative number.
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When you add two negative numbers you would end up with a negative number.eg; -4 + -5= -9It helps using a number line, coins, and other objects!
