上海温哥华电影学院:小学数学题

2.25*0.32*250
=(2.25*0.8)*(0.4*250)
=(2*0.8+0.25*0.8)*100
=1.8*100
=180

（1.5+2.25）*64.3+3.75*（93.2-57.5）
=3.75*64.3+3.75*35.7
=3.75*(64.3+35.7)
=3.75*100
=375

2.25*0.32*250
=(1+1.25)*0.4*0.8*250
=(1*0.8+1.25*0.8)*100
=(0.8+1)*100
=1.8*100
=180
（1.5+2.25）*64.3+3.75*（93.2-57.5）
=3.75*64.3+3.75*(93.2-57.5)
=3.75*(64.3+93.2-57.5)
=3.75*(157.5-57.5)
=3.75*100
=375

2.25*0.32*250
=(2.25*0.8)*(0.4*250)
=(2*0.8+0.25*0.8)*100
=1.8*100
=180
（1.5+2.25）*64.3+3.75*（93.2-57.5）
=3.75*64.3+3.75*(93.2-57.5)
=3.75*(64.3+93.2-57.5)
=3.75*(157.5-57.5)
=3.75*100
=375

第一个题与楼上雷同
第二题：（1.5+2.25）*64.3+3.75*（93.2-57.5）
＝3.75*64.3+3.75*（93.2-57.5）
＝3.75*（64.3+93.2-57.5）
＝3.75*（157.5-57.5）
＝3.75*100
＝375

2.25*0.32*250
=(2.25*0.8)*(0.4*250)
=(2*0.8+0.25*0.8)*100
=1.8*100
=180

（1.5+2.25）*64.3+3.75*（93.2-57.5）
=3.75*64.3+3.75*35.7
=373.875

（1.5+2.25）*64.3+3.75*（93.2-57.5）
=3.75*64.3+3.75*（93.2-57.5）
=3.75*(64.3+93.2-57.5)
=3.75*100
=375