7x8x9x6x2x5+15x89x5-45=?~~10+lf2

👨🏻‍🏫 學術台數學

用戶40911

2006-12-21 4:24 am

7x8x9x6x2x5+15x89x5-45=?

回答 (4)

▲

2006-12-21 4:44 am

✔ 最佳答案

7x8x9x6x2x5+15x89x5-45
=56x9x6x2x5+1335x5-45
=504x6x2x5+6675-45
=3024x2x5+6630
= 6048x5+6630
=30240+6630
=36870

參考: me

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匿名

2006-12-21 5:45 am

7x8x9x6x2x5=30240
15x89x5=6675
∴30240+6675-45=36870

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用戶81703

2006-12-21 5:16 am

7x8x9x6x2x5+15x89x5-45=?
=36870

參考: me

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Andrew

2006-12-21 4:28 am

7x8x9x6x2x5+15x89x5-45 = 36870

用excel

?~~10+lf2 是甚麼意思?

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