Math數學----------------(急)

2008-08-12 12:26 am
1. (-3 2/5)+(-2 1/3)=_______________

2. (-4 1/6)-(-1 3/4)=_______________

3. (-52)÷(-4)=_______________

4. (-18)÷3/5=_______________

5. (-12)×7+(+19)=_______________

6. (-23)-(-80)÷5=_______________


將以下分數化為小數,並取答案至小數點後兩個位。
(i)17/4=_______________

(ii)4 5/13=_______________

回答 (4)

2008-08-12 5:02 am
✔ 最佳答案
1) - 5 11/15
2) -2 5/12
3) 13
4) -30
5) -65
6) -7

(i) 4.25
(ii) 4.38

2008-08-11 21:04:24 補充:
The correct answer for (2) should be -2 5/12.
參考: my knowledge
2008-08-13 12:46 am
1) - 5 11/15
2) -2 5/12
3) 13
4) -30
5) -65
6) -7
(i) 4.25
(ii) 4.38
2008-08-12 5:40 am
1) - 5 11/15

2) -2 5/12

3) 13

4) -30

5) -65

6) -7

(i) 4.25

(ii) 4.38
2008-08-12 1:04 am
1. (-5 11/15)

2. (5 11/12)

3. 13

4. -30

5. -65

6. -7

(i) 4.25

(ii) 4.38
參考: 自己


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