Exercise 3.2 the sum of three old OD number se is odd or even
Show that the points : (-2,3, 5), (1,2, 3), (7, 0, -1 ) are collinear
integers
Q. Subtract on number line:
1. -5 - (2)
2. -3 - (-5)
3. 2-(-2)
4. 4-(4)