(1)4.5x2.5+10.75=(4+0.5)x(2+0.5)+10.75
=4x(2+0.5)+0.5x(2+0.5)+10.75
=8+2+1+0.25+10.75
=22
或者(2)4.5x2.5+10.75=9/2x5/2+43/4
=45/4+43/4
=88/4
=22
(1)4.5x2.5+10.75=(4+0.5)x(2+0.5)+10.75
=4x(2+0.5)+0.5x(2+0.5)+10.75
=8+2+1+0.25+10.75
=22
或者(2)4.5x2.5+10.75=9/2x5/2+43/4
=45/4+43/4
=88/4
=22