好easy的數学

👨🏻‍🏫 學術台數學

Justinleelee

2007-12-14 2:45 am

8.3 x 9.3+8.6-6.6
=?
有列式最佳

更新1:

2. 5.5-3.3+4.8 =?

更新2:

yipyip1026 係x9.3吾係x9.6

更新3:

wyy_1214：Do not do this ! I will檢舉you.

更新4:

why all people `s 回答are not same? some oen is 92.39,79.19,74.91,81.68

更新5:

神奇小子: I will chooes you

更新6:

rt2223abc Is OK

回答 (6)

神奇小子

2007-12-14 2:59 am

✔ 最佳答案

可以咁計
(8+0.3)x(9+0.3)+2
=8(9+0.3)+0.3(9+0.3)+2
=72+2.4+2.7+0.09+2
=74.9

2007-12-13 19:01:19 補充：
上面人士既方法都要計數機e 個最快唔洗計數機既方法~please choose me

參考: me

👍 0 👎 0

用戶200020

2007-12-14 4:41 pm

8.3 x 9.3 + 8.6 - 6.6

= 77.19 + 8.6-6.6

= 85.79-6.6

= 79.19

參考: me

👍 0 👎 0

[匿名]

2007-12-14 3:03 am

8.3 8.6 77.19
* 9.3 - 6.6 + 2
----------- --------- ---------------
7470 2.0 79.19
249
-----------
77.19
ans=79.19

5.5
- 3.3
----------
2.2
+ 4.8
-----------
7.0
ans is 7

參考: me

👍 0 👎 0

大神

2007-12-14 2:51 am

1.
8.3 x 9.6 + 8.6-6.6
=79.68 + 2
=81.68

2.
5.5-3.3+4.8
=2.2+4.8
=7

👍 0 👎 0

451664

2007-12-14 2:50 am

先x除,後+減
計左8.3x9.3先
8.3 x 9.3+8.6-6.6
=77.19+8.6-6.6
=92.39

2007-12-13 18:51:56 補充：
2. 次序冇所謂5.5-3.3+4.8 =7

2007-12-13 18:53:26 補充：
yipyip1026係x9.3吾係x9.6

參考: 自己計=]

👍 0 👎 0

allan_ps3

2007-12-14 2:50 am

8.3 x 9.3+8.6-6.6
= 77.19 + 8.6 - 6.6
= 79.19

5.5-3.3+4.8
= 7

👍 0 👎 0

收錄日期: 2021-04-20 13:33:43
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