唔該嗮！！！
Use all the numbers 10,20,30,40 and 50 with the arithmetic operations(＋,－,×,÷)and brackets, write down an expression with a result of 0
數學問題，幫下手！急
2009-08-15 6:31 pm
回答 (4)
2009-08-15 7:44 pm
✔ 最佳答案
Use all the numbers 10,20,30,40 and 50 with the arithmetic operations(＋,－,×,÷)and brackets, write down an expression with a result of 0 與算數運算 (＋、 －、 ×、 ÷) 和托槽使用 10,20,30,40 和 50 的所有數位，寫下運算式結果為 0
40+10-50×20
=50-50×20
=0×20
0
參考: me
2009-08-19 7:51 pm
10 X 40 / 20 +30 - 50
= 400 / 20 - 20
=20 - 20
= 0
= 400 / 20 - 20
=20 - 20
= 0
2009-08-15 7:11 pm
(40 - 30 - 10 ) x 20 x 50 = 0
Because
40-30-10=0
0 × Y = 0
(40 - 30 - 10 ) x 20 x 50=0
2009-08-19 20:09:34 補充：
你明唔明....
任何數乘以0都係等於0
所以( 40 - 30 - 10 ) x 20 x 50 = 0
( 50 - 30 - 20 ) x40 x 10 = 0
為左令你明 我設Y係未知數 0 X Y(任何未知數) = 0
Because
40-30-10=0
0 × Y = 0
(40 - 30 - 10 ) x 20 x 50=0
2009-08-19 20:09:34 補充：
你明唔明....
任何數乘以0都係等於0
所以( 40 - 30 - 10 ) x 20 x 50 = 0
( 50 - 30 - 20 ) x40 x 10 = 0
為左令你明 我設Y係未知數 0 X Y(任何未知數) = 0
收錄日期: 2021-04-19 15:08:58
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090815000051KK00472