小數化為百分率(要用四捨五入法)
下題:
10 1 13 8 33 39
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11 3 30 15 38 120
2006-10-09 16:43:47 · 3 個解答 · 發問者 emily106106 1 in 教育與參考 ➔ 考試
Sorry!我忘記說求商到小數第二位了!!
2006-10-10 05:20:12 · update #1
而且不用算式 只要題目跟答案
2006-10-10 05:24:07 · update #2
像摘星者一樣
2006-10-10 05:34:12 · update #3
1. 10/11 X 100% = 90.909 大約等於91%
2. 1/3 X 100% = 33.333 大約等於33%
3. 13/30 X 100% = 43.333 大約等於43%
4. 8/15 X 100% = 53.333 大約等於53%
5. 33/38 X 100% = 86.842 大約等於87%
6. 39/120 X 100% = 32.5 大約等於33%
2006-10-09 16:57:32 · answer #1 · answered by 柏逸 6 · 0⤊ 0⤋
10/11=0.90909090~ x 100%=90.909090~ ≒ 90.91%
1/3 x 100% ≒ 33.33%
13/30 x 100% ≒ 43.33%
53.33%
86.84%
32.5%
2006-10-09 16:51:28 · answer #2 · answered by 〒〒〒〒 6 · 0⤊ 0⤋
10/11=91%
1/3=33%
13/30=445
8/15=53%
33/38=87%
39/120=33%
2006-10-09 20:47:19 補充:
13/30=44%
2006-10-10 12:31:42 補充:
10/11=90.91%1/3=33.33%13/30=43.33%8/15=53.33%33/38=86.84%39/120=32.50%
2006-10-09 16:46:47 · answer #3 · answered by 摘星者 3 · 0⤊ 0⤋