你好:试下这样
0.25x10.4=0.25×(10+0.4)
=0.25×10+0.25×0.4(每一步都可以口算)
=2.5+0.1
=2.6
希望能帮到你
0.25*10.4
=0.25*(10+0.4)
=0.25*10+0.25*0.4
=2.5*0.1
2.6
希望可以帮到你。
0.25×10.4=0.25×(10+0.4)=0.25×10+0.25×0.4=2.5+0.1=2.6
0.25*(10+0.4)=2.5+0.1=2.6
=0.25×10+0.25×0.4
=2.5+0.1=2.6