题目内容
| 口算 1.01-0.98= |
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| 2÷0.25+1.1= |
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| 5.76÷（2.76+0.8）= | 108×
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| 0.125×17×8= | 0.43= |
分析：①注意相同数位对齐；②先算乘法，再算加法；③先算除法，再算加法；④把除法改为乘法，约分计算；⑤先算括号内的，再算括号外的，结果除不尽，注意用分数表示；⑥先算乘法，再算减法；⑦运用乘法交换律与结合律简算；⑧此题即0.4×0.4×0.4．
解答：解：
| 1.01-0.98=0.03 |
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| 2÷0.25+1.1=9.1 |
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5.76÷（2.76+0.8）=
|
108×
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| 0.125×17×8=17 | 0.43=0.064． |
点评：口算题目要求快速准确，能运用简算方法的要简算．
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