正确、合理、灵活地计算下面各题．7.26-58+2.74-0.3750.25×37+14×64-25%18×（13+16-19）（45+14）÷73+71079-311-811+29（8.6×0.5-3110）÷12．

Question

正确、合理、灵活地计算下面各题． 7.26-(5)/(8)+2.74-0.375	0.25×37+(1)/(4)×64-25%	18×（(1)/(3)+(1)/(6)-(1)/(9)）
（(4)/(5)+(1)/(4)）÷(7)/(3)+(7)/(10)	(7)/(9)-(3)/(11)-(8)/(11)+(2)/(9)	（8.6×0.5-3(1)/(10)）÷12．

Answer 1

（1）7.26-(5)/(8)+2.74-0.375
=（7.26+2.74）-（(5)/(8)+0.375）
=10-1
=9；

（2）0.25×37+(1)/(4)×64-25%
=0.25×37+0.25×64-0.25
=0.25×（37+64-1）
=0.25×100
=25；

（3）18×（(1)/(3)+(1)/(6)-(1)/(9)）
=18×(1)/(3)+18×(1)/(6)-18×(1)/(9)
=6+3-2
=9-2
=7；

（4）（(4)/(5)+(1)/(4)）÷(7)/(3)+(7)/(10)
=(21)/(20)÷(7)/(3)+(7)/(10)
=(9)/(20)+(7)/(10)
=(23)/(20)；

（5）(7)/(9)-(3)/(11)-(8)/(11)+(2)/(9)
=（(7)/(9)+(2)/(9)）-（(3)/(11)+(8)/(11)）
=1-1
=0；

（6）（8.6×0.5-3(1)/(10)）÷12
=（4.3-3(1)/(10)）÷12
=1.2÷12
=0.1．