(1) 18.9 乘 0.85 加 24.6 乘 1.75 = ?
(2) 67.3 減 23.7 加 17.79 = ?
(3) 37.8 乘 1.5 加 37.8 = ?
小五數學(小數)3題
2007-04-14 10:23 pm
回答 (14)
2007-04-14 10:27 pm
✔ 最佳答案
(1) 18.9 乘 0.85 加 24.6 乘 1.75 = 59.115 (2) 67.3 減 23.7 加 17.79 = 61.39
(3) 37.8 乘 1.5 加 37.8 = 94.5
參考: Counting
2007-04-15 7:15 am
(1) 18.9 乘 0.85 加 24.6 乘 1.75
=16.065+43.05
=59.115
(2) 67.3 減 23.7 加 17.79
=43.6+17.79
=61.39
(3) 37.8 乘 1.5 加 37.8
=56.7+37.8
=94.5
=16.065+43.05
=59.115
(2) 67.3 減 23.7 加 17.79
=43.6+17.79
=61.39
(3) 37.8 乘 1.5 加 37.8
=56.7+37.8
=94.5
2007-04-15 5:26 am
(1)18.9*0.85+24.6*1.75=16.065+43.05=59.115
(先乘除後加減)(先計18.9乘 0.85=16.065)(再計24.6 乘 1.75=43.05)(最後兩個加埋,就行了)
(2)67.3-23.7+17.79=43.6+17.79=61.39
(先計67.3 減 23.7=43.6)(再加 17.79,就行了)
(3)37.8*1.5+37.8=56.7+37.8=94.5
(先計37.8 乘 1.5=56.7)(再 加 37.8,就行了)
(先乘除後加減)(先計18.9乘 0.85=16.065)(再計24.6 乘 1.75=43.05)(最後兩個加埋,就行了)
(2)67.3-23.7+17.79=43.6+17.79=61.39
(先計67.3 減 23.7=43.6)(再加 17.79,就行了)
(3)37.8*1.5+37.8=56.7+37.8=94.5
(先計37.8 乘 1.5=56.7)(再 加 37.8,就行了)
2007-04-14 10:47 pm
先乘除後加減
18.9x0.85+24.6x1.75
=(18.9x0.85)+(24.6x1.75)
=16.065+(24.6x1.75)
=16.065+43.05
=59.115
2007-04-14 14:53:24 補充：
2) 67.3-23.7+17.79=43.6+17.79=61.393)先乘除後加減 37.8x1.5+37.8=(37.8x1.5)+37.8=56.7+37.8=94.5
18.9x0.85+24.6x1.75
=(18.9x0.85)+(24.6x1.75)
=16.065+(24.6x1.75)
=16.065+43.05
=59.115
2007-04-14 14:53:24 補充：
2) 67.3-23.7+17.79=43.6+17.79=61.393)先乘除後加減 37.8x1.5+37.8=(37.8x1.5)+37.8=56.7+37.8=94.5
參考: me
2007-04-14 10:45 pm
1) 18.9 ｘ0.85 ＋24.6 ｘ 1.75 ＝59.115
(2) 67.3 － 23.7 ＋17.79 ＝ 61.39
(3) 37.8 ｘ 1.5 ＋ 37.8 ＝ 94.5
(2) 67.3 － 23.7 ＋17.79 ＝ 61.39
(3) 37.8 ｘ 1.5 ＋ 37.8 ＝ 94.5
參考: 我
2007-04-14 10:28 pm
1) 59.115
2) 61.39
3) 94.5
2) 61.39
3) 94.5
收錄日期: 2021-04-12 19:18:14
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070414000051KK02491