Same Sign Addition
2/5 + (-1/2)
-1/10
When adding two numbers of the same sign, the answer will be....
that same sign
Please draw a number line for (-9)+4
-2.5 + -2.5=
-5
When adding numbers with different signs, what is a rule to find out if the sum is negative or positive?
Whatever number has the higher absolute value will determine the sign
1/10 - 4/5
-7/10
-8+(-4)
-12
Please draw 8+(-12) on a numberline
-4
1/2 - .25
.25 or 1/4
Please draw -4 + (-7) on a numberline.
-11
-5/2 + 2.5=
0