简算:1÷0.1÷0.01÷0.001×1/1000000
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/05/10 07:42:14
简算:1÷0.1÷0.01÷0.001×1/1000000
1÷0.1÷0.01÷0.001×1/1000000
3又2/5×5.25+3.4×2又3/4+1÷5/17
1÷0.1÷0.01÷0.001×1/1000000
3又2/5×5.25+3.4×2又3/4+1÷5/17
1.除以一个数等于乘以这个数的倒数
1÷0.1÷0.01÷0.001×1/1000000
=1÷1/10÷1/100÷1/1000×1/1000000
=1×10×100×1000×1/1000000
=1×1000000×1/1000000
=1
2.先化成小数
3又2/5×5.25+3.4×2又3/4+1÷5/17
=3.4×5.25+3.4×2.75+1×17/5
=3.4×5.25+3.4×2.75+1×3.4
=3.4×(5.25+2.75+1)
=3.4×9
=30.6
1÷0.1÷0.01÷0.001×1/1000000
=1÷1/10÷1/100÷1/1000×1/1000000
=1×10×100×1000×1/1000000
=1×1000000×1/1000000
=1
2.先化成小数
3又2/5×5.25+3.4×2又3/4+1÷5/17
=3.4×5.25+3.4×2.75+1×17/5
=3.4×5.25+3.4×2.75+1×3.4
=3.4×(5.25+2.75+1)
=3.4×9
=30.6
简算:1÷0.1÷0.01÷0.001×1/1000000
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