五年级上学期34页第4题 0.75*18/0.15 2.07/0.23/0.45 21.36/0.8-12.9 7.28+3.2/2.5脱式计算

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五年级上学期34页第4题 0.75*18/0.15 2.07/0.23/0.45 21.36/0.8-12.9 7.28+3.2/2.5脱式计算
五年级上学期34页第4题 0.75*18/0.15 2.07/0.23/0.45 21.36/0.8-12.9 7.28+3.2/2.5
脱式计算

五年级上学期34页第4题 0.75*18/0.15 2.07/0.23/0.45 21.36/0.8-12.9 7.28+3.2/2.5脱式计算
就是这样了
0.75×18÷0.15 2.07÷0.23÷0.45 21.36÷0.8-12.9
=13.5÷0.15 =9÷0.45 =26.7-12.9
=90 =20 =13.8
7.28+3.2÷2.5
=7.28+1.28
=8.56

答案为3.928

0.75×18÷0.15 2.07÷0.23÷0.45 21.36÷0.8-12.9
=13.5÷0.15 =9÷0.45 =26.7-12.9
=90 =20 =13.8
7.28+3.2÷2.5
=7.28+1.28
=8.56