算子為 a*b=aX(b+a)+10
1) 3*7=3X(___________+____________)+10=__________
2) 7*3=7X(___________+____________)+10=__________
3) 3*7(是/不是)=7*3
數學的問題~
2007-08-02 8:57 pm
回答 (3)
2007-08-02 9:03 pm
✔ 最佳答案
張a同b放向條式到....e.g 3*7=3X(__7_________+______3______)+10=___60______咁a=3...b=7.....
7*3=7X(______3_____+_____7_______)+10=_____60_____
3*7是=7*3
2007-08-02 13:05:17 補充：
7*3+7+10=140......sorry
2007-08-02 13:07:10 補充：
sorry....唔記得左先/ *後+ -....答案係80.....因為答案相同...所以3*7是=7*3
2007-08-02 9:22 pm
都唔知你問滅???
2007-08-02 9:01 pm
1) 3*7=3X(_____7_____+____3________)+10=___40_______
2) 7*3=7X(______3_____+______7______)+10=_____80_____
3) 3*7(是)=7*3
2) 7*3=7X(______3_____+______7______)+10=_____80_____
3) 3*7(是)=7*3
參考: i think~~hope can help you!!
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