很容易的!简便计算:7.29乘4.6加46乘1.2719.6乘3.6加8.2乘0.2

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/28 04:38:27
很容易的!简便计算:7.29乘4.6加46乘1.2719.6乘3.6加8.2乘0.2

很容易的!简便计算:7.29乘4.6加46乘1.2719.6乘3.6加8.2乘0.2
很容易的!
简便计算:
7.29乘4.6加46乘1.271
9.6乘3.6加8.2乘0.2

很容易的!简便计算:7.29乘4.6加46乘1.2719.6乘3.6加8.2乘0.2
7.29乘4.6加46乘1.271
=0.729×46+46×1.271
=(0.729+1.271)×46
=2×46
=92
9.6乘3.6加8.2乘0.2
=9.6×9×0.4+4.1×0.4
=(9.6×9+4.1)×0.4
=90.5×0.4
=36.2

7.29*4.6+46*1.271
=46*0.729+46*1.271
=46*(0.729+1.271)
=46*2
=92

7.29*4.6+46*1.271 =46*0.729+46*1.271=46*(0.729+1.271)=46*2=92

7.29*4.6+46*1.271
=46*0.729+46*1.271
=46*(0.729+1.271)
=46*2
=92