Find the difference between the Rational numbers B and A as shown on the number line.
B lies between 2 and 3 and it is in the middle. Value of B = 212 or 52
A lies between -1 and -2 and it is in the middle. Value of A = −112 or −32
Difference between B and A = B - A = 52−−32 = 5+32 = 82 = 4
We can also use the number of points on the number line that we travel left from B to A to get the same value.