計算問題.

2007-01-09 3:34 am
鵝每公斤38.5元,竹筍每公斤45.5元,凡買了5公斤,減收40元,他買了鵝和竹筍各2.6公斤,要付多少元?
請列橫式

回答 (3)

2007-01-09 3:42 am
✔ 最佳答案
要付:
(2.6+2.6)x(38.5+45.5)-40
=5.2x84-40
=436.8-40
=396.8(元)
2007-01-09 4:28 am
(38.5乘2.6+45.5乘2.6)-50
=(100.1+118.3)-50
=218.4-50
=168.4
參考: me
2007-01-09 3:39 am
5X2.6+45.5X2.6
=38
參考: Me


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