37➕38的竖式计算(
37➕38的竖式计算? -
回答:37+38=75 37 +38 一一75
99x38+1x38=(99+1)x38=100x38=3800
回答:37+38=75 37 +38 一一75
99x38+1x38=(99+1)x38=100x38=3800
99×38+38 =38×(99+1)=38×100 =3800
原式=126×19+37×2×19 =19×(126+37×2)=19×200 =3800
126✖️19➕37✖️38怎么巧算 -
解:根据题意得,126x19+37x2x19 =126x19+74x19 =19x(126+74)=19x200 =3800
38+1.37+6.2+12.63 =(38+6.2)(1.37+12.63)44.2+14 =58.2
38✖️29➕38简便方法? -
=38x(29+1)=38x30 =1140
等于38×99+38乘1 等于38×(99+1)的和等于38乘100 等于3800
38✖️36➕38✖️36➕38怎么简便计算? -
38✖️36➕38✖️36➕38 =38x(36+36+1)=38x73 =38x3+38x70 =114+2660 =2774
250✖️2➕38➖17.8686 =500+38-17.8686 =538-17.8686 =520.1314