Question

0.12×63+1.9×126+196×0.74的简便计算？

Answer 1

0.12×63+1.9×126+196×0.74
=(0.06x126+1.9c126)+196x0.74
=126x(0.06+1.9)+1.96x74
=126x1.96+1.96x74
=1.96x(126+74)
=1.96x200
=392。团运橡塌旁悄团

Answer 2

0.12×63+1.9×126+196×0.74的简顷毁便铅掘计算槐乎核？
0.12×63+1.9×126+196×0.74
=63x2x(0.06+1.9)+1.96x74
=126x1.96+1.96x74
=1.96x(126+74)
=1.96x200
=392