Point M is the point on the number axis that represents -1. If M is translated 3 units to the right along the number axis to point N, then the point N represents how much.
M点为数轴上的表示-1的点，将M沿着数轴向右平移3个单位到N点，则N点表示多少．
<gadget id="calculator">(-1) + 3</gadget>
<output>2</output>

<result>2</result>