2.5*10.5简算要算式,

问题描述:

2.5*10.5简算要算式,

2.5×10.5
=2.5×(10+0.5)
=2.5×10+2.5×0.5
=25+1.25
=26.25

2.5x10+0.5x2.5=26.25

2.5*10.5
=2.5*(10+0.5)
=2.5*10+2.5*0.5
=25+1.25
=26.25