唔咪好明
1.427+138x65÷12+5=?
2.(471+362-112x3)÷7=?
3.(216-168÷4)x31-8=?
唔咪好明,Maths
2007-12-20 4:51 am
回答 (2)
2007-12-21 6:30 pm
1.1179.5
2.71
3.5386
2.71
3.5386
2007-12-21 3:56 am
1. 427+138x65÷12+5
=427+8970÷12+5
=427+747.5+5
=1179.5
2. (471+362-112x3)÷7
=(471+362-336)÷7
=497÷7
=71
3.(216-168÷4)x31-8
=(216-42)x31-8
=174x31-8
=5394-8
=5386
=427+8970÷12+5
=427+747.5+5
=1179.5
2. (471+362-112x3)÷7
=(471+362-336)÷7
=497÷7
=71
3.(216-168÷4)x31-8
=(216-42)x31-8
=174x31-8
=5394-8
=5386
參考: me
收錄日期: 2021-04-13 14:45:35
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071219000051KK03366