1.32.8*91-16.4*92-1.75*656
=32.8*91-32.8*46-35*32.8
=32.8*(91-46-35)
=32.8*10
=328
2. 61*17分之1-1/17*47+20/17
=(61-47+20)*1/17
=34*1/17
=2
3. (3.6*5分之7*4)/(0.35*1.8*2分之1)
=(3.6*1.8)*(1.4/0.35)*(4/0.5)
=2*4*8
=64
1.32.8*91-16.4*92-1.75*656
=32.8*91-32.8*46-35*32.8
=32.8*(91-46-35)
=32.8*10
=328
2. 61*17分之1-1/17*47+20/17
=(61-47+20)*1/17
=34*1/17
=2
3. (3.6*5分之7*4)/(0.35*1.8*2分之1)
=(3.6*1.8)*(1.4/0.35)*(4/0.5)
=2*4*8
=64