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[题目]求出下列每对数在数轴上对应点之间的距离(1)3与-2.2; (2)4(1/2)和2(1/4);(3)-4与-4.5; (4)-3(1/2)和2(1/3).你能发现所得的距离与这两数的差有什么关系吗?经过思考、分析,同学们会发现:
[Subject] Find the distances between the corresponding points on the axis for each of the following pairs (1)3 and -2.2; (2)4(1/2) and 2(1/4); (3)-4 and - 4.5; (4) -3 (1/2) and 2 (1/3). Can you find out how the distance you get is related to the difference between the two numbers? After thinking and analyzing, the students will find: