(1)(9分之1+12分之1-6分之1)×36
=1/9×36+1/12×36-1/6×36
=4+3-6
=1
(2)32分之5 ×[﹙8-8*4分之3﹚÷16分之1]
=5/32×16×8×(1-3/4)
=20×1/4
=5
(3)9.8-6.75+9.2-0.25
=(9.8+9.2)-(6.75+0.25)
=19-7
=12
(4)25*125*0.32
=25×0.4×(125×0.8)
=10×100
=1000
(5)25÷[8.63+(12.5-8.63)]
=25÷[8.63-8.63+12.5]
=25÷12.5
=2
(6)25分之4 × 8分之5 - 5分之2 ÷ 8
=4/5×1/8-2/5×1/8
=(4/5-2/5)×1/8
=2/5×1/8
=1/20