题目内容
分析:输入9或5,根据乘2,减去2,乘0.5,求输出结果,列式为:(9×2-2)×0.5,或(5×2-2)×0.5,计算即可.
解答:解:(9×2-2)×0.5,
=(18-2)×0.5,
=16×0.5,
=8;
(5×2-2)×0.5,
=(10-2)×0.5,
=8×0.5,
=4.
=(18-2)×0.5,
=16×0.5,
=8;
(5×2-2)×0.5,
=(10-2)×0.5,
=8×0.5,
=4.
点评:根据提示,列出算式,解决问题.
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