（2011•秀屿区）计算下面各题，能用简便方法算的就用简便方法算．（1）450+450÷18（2）（0.64÷16+1.06）÷22（3）514÷[67×(49+16)]（4）49×14+59×25%+1÷4

Question

（2011•秀屿区）

计算下面各题，能用简便方法算的就用简便方法算． （1）450+450÷18	（2）（0.64÷16+1.06）÷22
（3）(5)/(14)÷[(6)/(7)×((4)/(9)+(1)/(6))]	（4）(4)/(9)×(1)/(4)+(5)/(9)×25%+1÷4

计算下面各题，能用简便方法算的就用简便方法算． （1）450+450÷18	（2）（0.64÷16+1.06）÷22
（3）(5)/(14)÷[(6)/(7)×((4)/(9)+(1)/(6))]	（4）(4)/(9)×(1)/(4)+(5)/(9)×25%+1÷4

计算下面各题，能用简便方法算的就用简便方法算．
（1）450+450÷18
（2）（0.64÷16+1.06）÷22计算下面各题，能用简便方法算的就用简便方法算．
（1）450+450÷18

（2）（0.64÷16+1.06）÷22
（3）(5)/(14)÷[(6)/(7)×((4)/(9)+(1)/(6))] （4）(4)/(9)×(1)/(4)+(5)/(9)×25%+1÷4（3）(5)/(14)÷[(6)/(7)×((4)/(9)+(1)/(6))](5)/(14)÷[(6)/(7)×((4)/(9)+(1)/(6))](5)/(14)551414(6)/(7)6677(4)/(9)4499(1)/(6)1166（4）(4)/(9)×(1)/(4)+(5)/(9)×25%+1÷4(4)/(9)×(1)/(4)+(5)/(9)×25%+1÷4(4)/(9)4499(1)/(4)1144(5)/(9)5599

Answer 1

（1）450+450÷18，
=450+25，
=475；

（2）（0.64÷16+1.06）÷22，
=（0.04+1.06）÷22，
=1.1÷22，
=0.05；

（3）(5)/(14)÷[(6)/(7)×（(4)/(9)+(1)/(6)）]，
=(5)/(14)÷[(6)/(7)×(11)/(18)]，
=(5)/(14)÷(11)/(21)，
=(5)/(14)×(21)/(11)，
=(15)/(22)；

（4）(4)/(9)×(1)/(4)+(5)/(9)×25%+1÷4，
=(4)/(9)×0.25+(5)/(9)×0.25+0.25，
=0.25×（(4)/(9)+(5)/(9)+1），
=0.25×2，
=0.5． (5)/(14)555141414÷[(6)/(7)×（(4)/(9)+(1)/(6)）]，
=(5)/(14)÷[(6)/(7)×(11)/(18)]，
=(5)/(14)÷(11)/(21)，
=(5)/(14)×(21)/(11)，
=(15)/(22)；

（4）(4)/(9)×(1)/(4)+(5)/(9)×25%+1÷4，
=(4)/(9)×0.25+(5)/(9)×0.25+0.25，
=0.25×（(4)/(9)+(5)/(9)+1），
=0.25×2，
=0.5． (6)/(7)666777×（(4)/(9)+(1)/(6)）]，
=(5)/(14)÷[(6)/(7)×(11)/(18)]，
=(5)/(14)÷(11)/(21)，
=(5)/(14)×(21)/(11)，
=(15)/(22)；

（4）(4)/(9)×(1)/(4)+(5)/(9)×25%+1÷4，
=(4)/(9)×0.25+(5)/(9)×0.25+0.25，
=0.25×（(4)/(9)+(5)/(9)+1），
=0.25×2，
=0.5． (4)/(9)444999+(1)/(6)）]，
=(5)/(14)÷[(6)/(7)×(11)/(18)]，
=(5)/(14)÷(11)/(21)，
=(5)/(14)×(21)/(11)，
=(15)/(22)；

（4）(4)/(9)×(1)/(4)+(5)/(9)×25%+1÷4，
=(4)/(9)×0.25+(5)/(9)×0.25+0.25，
=0.25×（(4)/(9)+(5)/(9)+1），
=0.25×2，
=0.5． (1)/(6)111666）]，
=(5)/(14)÷[(6)/(7)×(11)/(18)]，
=(5)/(14)÷(11)/(21)，
=(5)/(14)×(21)/(11)，
=(15)/(22)；

（4）(4)/(9)×(1)/(4)+(5)/(9)×25%+1÷4，
=(4)/(9)×0.25+(5)/(9)×0.25+0.25，
=0.25×（(4)/(9)+(5)/(9)+1），
=0.25×2，
=0.5． (5)/(14)555141414÷[(6)/(7)×(11)/(18)]，
=(5)/(14)÷(11)/(21)，
=(5)/(14)×(21)/(11)，
=(15)/(22)；

（4）(4)/(9)×(1)/(4)+(5)/(9)×25%+1÷4，
=(4)/(9)×0.25+(5)/(9)×0.25+0.25，
=0.25×（(4)/(9)+(5)/(9)+1），
=0.25×2，
=0.5． (6)/(7)666777×(11)/(18)]，
=(5)/(14)÷(11)/(21)，
=(5)/(14)×(21)/(11)，
=(15)/(22)；

（4）(4)/(9)×(1)/(4)+(5)/(9)×25%+1÷4，
=(4)/(9)×0.25+(5)/(9)×0.25+0.25，
=0.25×（(4)/(9)+(5)/(9)+1），
=0.25×2，
=0.5． (11)/(18)111111181818]，
=(5)/(14)÷(11)/(21)，
=(5)/(14)×(21)/(11)，
=(15)/(22)；

（4）(4)/(9)×(1)/(4)+(5)/(9)×25%+1÷4，
=(4)/(9)×0.25+(5)/(9)×0.25+0.25，
=0.25×（(4)/(9)+(5)/(9)+1），
=0.25×2，
=0.5． (5)/(14)555141414÷(11)/(21)，
=(5)/(14)×(21)/(11)，
=(15)/(22)；

（4）(4)/(9)×(1)/(4)+(5)/(9)×25%+1÷4，
=(4)/(9)×0.25+(5)/(9)×0.25+0.25，
=0.25×（(4)/(9)+(5)/(9)+1），
=0.25×2，
=0.5． (11)/(21)111111212121，
=(5)/(14)×(21)/(11)，
=(15)/(22)；

（4）(4)/(9)×(1)/(4)+(5)/(9)×25%+1÷4，
=(4)/(9)×0.25+(5)/(9)×0.25+0.25，
=0.25×（(4)/(9)+(5)/(9)+1），
=0.25×2，
=0.5． (5)/(14)555141414×(21)/(11)，
=(15)/(22)；

（4）(4)/(9)×(1)/(4)+(5)/(9)×25%+1÷4，
=(4)/(9)×0.25+(5)/(9)×0.25+0.25，
=0.25×（(4)/(9)+(5)/(9)+1），
=0.25×2，
=0.5． (21)/(11)212121111111，
=(15)/(22)；

（4）(4)/(9)×(1)/(4)+(5)/(9)×25%+1÷4，
=(4)/(9)×0.25+(5)/(9)×0.25+0.25，
=0.25×（(4)/(9)+(5)/(9)+1），
=0.25×2，
=0.5． (15)/(22)151515222222；

（4）(4)/(9)×(1)/(4)+(5)/(9)×25%+1÷4，
=(4)/(9)×0.25+(5)/(9)×0.25+0.25，
=0.25×（(4)/(9)+(5)/(9)+1），
=0.25×2，
=0.5． (4)/(9)444999×(1)/(4)+(5)/(9)×25%+1÷4，
=(4)/(9)×0.25+(5)/(9)×0.25+0.25，
=0.25×（(4)/(9)+(5)/(9)+1），
=0.25×2，
=0.5． (1)/(4)111444+(5)/(9)×25%+1÷4，
=(4)/(9)×0.25+(5)/(9)×0.25+0.25，
=0.25×（(4)/(9)+(5)/(9)+1），
=0.25×2，
=0.5． (5)/(9)555999×25%+1÷4，
=(4)/(9)×0.25+(5)/(9)×0.25+0.25，
=0.25×（(4)/(9)+(5)/(9)+1），
=0.25×2，
=0.5． (4)/(9)444999×0.25+(5)/(9)×0.25+0.25，
=0.25×（(4)/(9)+(5)/(9)+1），
=0.25×2，
=0.5． (5)/(9)555999×0.25+0.25，
=0.25×（(4)/(9)+(5)/(9)+1），
=0.25×2，
=0.5． (4)/(9)444999+(5)/(9)+1），
=0.25×2，
=0.5． (5)/(9)555999+1），
=0.25×2，
=0.5．