Question

（2012?太原模拟）计算：0.22+

4.5-2 3 4

8 5

÷0.125-0.125×3

1

5

=

Answer 1

分析：先算出0.2²=0.04，再化简繁分数，最后依据四则运算顺序解答．

解答：解：0.2²+

4.5-2 3 4

8 5

÷0.125-0.125×3

1

5

，
=0.04+

1.75

8 5

÷0.125-0.125×3.2，
=0.04+

35

32

÷0.125-0.4，
=0.04+8.75-0.4，
=8.79-0.4，
=8.39．
故答案为：8.39．

点评：本题的难点是繁分数化简．