If we want to mark +3 on a number line, we will move 3 units to the right side of zero on the number line.
True
According to the number line,
For positive values, we move towards the right side of the zero and for negative values, we move towards the left side of the zero, on the number line. So for marking +3, which is a positive integer, we have to move 3 steps towards the right side of zero.