小六數學問題,超急 十分

1)
(1,560 + 234) / 1,560
= 1,794 / 1,560
= 1.15
= 115%

2)
(180 - 144) / 144
= 36 / 144
= 0.25
= 25%

3)
109 / (109 + 29)
= 29 / 138
= 0.21
= 21%

4)
(1,073 - 624) / 1,073
= 449 / 1,073
= 0.42
= 42%

5)
(240 + 84) / 240
= 324 / 240
= 1.35
= 135%

2007-04-16 16:16:51 補充：
Sorry, question 3 should be3)29 / (109 + 29)= 29 / 138= 0.21= 21%

1
(1,560 + 234) / 1,560
= 1,794 / 1,560
= 1.15
= 115%

2
(180 - 144) / 144
= 36 / 144
= 0.25
= 25%

3
29 / (109 + 29)
= 29 / 138
= 0.21
= 21%



4
(1,073 - 624) / 1,073
= 449 / 1,073
= 0.42
= 42%

5
(240 + 84) / 240
= 324 / 240
= 1.35
= 135%

1. 工人上星期得工資1560元,本星期比上星期多得234元.本星期的工資是上星期的百分之 幾?

(1560+234)
________ X100%

1560

=115%

2.A區警署共有警察180人,出外值勤的佔144人,其餘的都在警署內工作.在警署內工作的警察人數是出外值勤人數的百分之幾?

(180-144)
________ X100%
144

=25%

3.黃貓109隻,白貓29隻.白貓的數量是全部貓的百分之幾?
29
______ x100%
109+29

=28.260%

=28.26%

4.陳先生原有1073元,購買皮鞋後還餘624元.陳先生用去他原有款項的百分之幾?(答案取至小數點後兩個位)

1073-624
_________ X100%
1073

=14.845%

=14.85%

5.周太買了一條裙子,它的售價比襯衫(240元)貴84元.這條裙子的售價是襯衫的百分之幾?

240+84
_______ X100%
240

=135%

本星期的工資是上星期的:
(1560+234/1560)*100%
=(1794/1560)*100%
=115%
在警署內工作的警察人數是出外值勤人數的:
(180-144/144)*100%
=(36/144)*100%
=(100/3)%
白貓的數量是全部貓的:
(29/109+29)*100%
=(29/138)*100%
=(1450/69)%
陳先生用去他原有款項的:
(1073-624/1073)*100%
=(449/1073)*100%
約=41.85%
這條裙子的售價是襯衫的:
(240+84/240)*100%
=(324/240)*100%
=135%

1)
( 1,560 + 234) / 1,560
= 1,794 / 1,560
= 1.15
= 115%

2)
(180 - 144) / 144
= 36 / 144
= 0.25
= 25%

3)
29 / (109 + 29)
= 29 / 138
= 0.21
= 21%
4)
(1,073 - 624) / 1,073
= 449 / 1,073
= 0.42
= 42%

5)
(240 + 84) / 240
= 324 / 240
= 1.35
= 135%