Question

小数口算题要答案的300道

Answer 1

1.(1+1/2)(1+1/3)(1+1/4)......(1+1/100)

2.(1-1/2)(1-1/3)(1-1/4)......(1-1/100)

3.8+2-8+2

4.25*4/25*4

5.7.26-(5.26-1.5)

6.286+198

7.314-202

8.526+301

9.223-99