2.9*0.45+0.29*4.2+0.029*13用简便计算
2个回答
2.9*0.45+0.29*4.2+0.029*13
=2.9*0.45+2.9*0.42+2.9*0.13
=2.9*(0.45+0.42+0.13)
=2.9*1
=2.9
相关问题
2.9*0.45+0.29*4.2+0.029*13怎样用简便方法
2.9×0.45+0.29×4.2+0.029×13 简便计算 ,递等式
2.9*0.45+0.29*4.2+0.029*13怎样简算
3.54*9.9+3.54*0.1 2.9*0.45+0.29*4.2+0.029*13 6.4*99 9.58*0.8
2.9÷1.3=()×0.13=()×0.013=0.29×()=0.029×()=()×()=()×()=()
2.9*0.45+0.29*4.2+0.
0.45+4.5*0.9简便计算
脱式计算(能简便的要简便)1.45.6/2.5/0.42.1.55+13.45/0.53.9.4*10.14.0.8*(
简便计算:(0.75*2.6*2.7)/(0.13*0.25*9)
用简便方法计算.4.45+0.63+5.556.58-(2.58+0.9)7.23+6.84-0.84+2.77.