能简便的用简便方法计算．1+0.45÷0.9-782.5×25-0.12÷13+8.36(712+58−1136)×721.4+(38−0.25)÷11445×[(1.5+223)÷3.75−23]．

Question

能简便的用简便方法计算．
1+0.45÷0.9-(7)/(8)
2.5×(2)/(5)-0.12÷(1)/(3)+8.36
((7)/(12)+(5)/(8)−(11)/(36))×72
1.4+((3)/(8)−0.25)÷1(1)/(4)
45×[(1.5+2(2)/(3))÷3.75−(2)/(3)]．

Answer 1

（1）1+0.45÷0.9-(7)/(8)
=1+0.5-0.875
=1.5-0.875
=0.625

（2）2.5×(2)/(5)-0.12÷(1)/(3)+8.36
=1-0.12×3+8.36
=1-0.36+8.36
=0.64+8.36
=9

（3）（(7)/(12)+(5)/(8)-(11)/(36)）×72
=(7)/(12)×72+(5)/(8)×72-(11)/(36)×72
=42+45-22
=65

（4）1.4+（(3)/(8)-0.25）÷1(1)/(4)
=1.4+（(3)/(8)-(1)/(4)）÷1(1)/(4)
=1.4+(1)/(8)×(4)/(5)
=1.4+(1)/(10)
=1.4+0.1
=1.5

（5）45×[（1.5+2(2)/(3)）÷3.75-(2)/(3)]
=45×[（1(1)/(2)+2(2)/(3)）÷3(3)/(4)-(2)/(3)]
=45×[(25)/(6)×(4)/(15)-(2)/(3)]
=45×[(10)/(9)-(2)/(3)]
=45×(4)/(9)
=20