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9.1-1.2÷6-6.24 7.3+12.8-3.8×2.3
(5.36+7.64)÷13×100 7.575÷[(5.63-1.88)×0.2].
分析:根据小数四则混合运算的运算顺序计算即可,先算乘除,再算加减,有括号的要先算括号里面的.
解答:解:(1)9.1-1.2÷6-6.24
=9.1-0.2-6.24,
=8.9-6.24,
=2.66;

(2)7.3+12.8-3.8×2.3
=20.1-8.74,
=11.36;

(3)(5.36+7.64)÷13×100
=13÷13×100,
=100;

(4)7.575÷[(5.63-1.88)×0.2]
=7.575÷[3.75×0.2],
=7.575÷0.75,
=10.1.
点评:在完成脱式计算题目时,要注意计算过程的完整性,中间不要有太大跳跃.
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