Ⅰ 175脳56-56脳70-56脳5鐢ㄧ亩渚胯繍绠楄繖棰樻庝箞鍐欙纻
175脳56-56脳70-56脳5鐢ㄧ亩渚胯繍绠楄繖镙疯繘琛岋细
阃嗙敤涔樻硶鍒嗛厤寰嬩娇璁＄畻绠渚匡细
175脳56-56脳70-56脳5
=锛175-70-5锛壝56 钬斺旀彁鍙栧叕锲犳暟56
=100脳56
=5600
镓╁𪾢璧勬枡锛
涔樻硶鍒嗛厤寰嬶细
鎸囦袱涓鏁扮殑鍜岋纸鎴栧樊锛変笌涓涓鏁扮浉涔桡纴鍙浠ュ厛鎶婂畠浠鍒嗗埆涓庤繖涓鏁扮浉涔桡纴鍐嶆妸镓寰楃殑绉鐩稿姞锛堢浉鍑忥级锛岀粨鏋滀笉鍙樸
鐢ㄥ瓧姣嶈〃绀猴细銆銆
锛坅+b锛壝 c=a脳c+b脳c
鍙桦纺锛
锛坅-b锛壝 c=a脳c-b脳c
Ⅱ 绠渚胯繙绠 175脳56 25脳50脳25脳20脳40镐庝箞锅
175x56
=(25x7)x(4x14)
=(25x4)x(7x14)
=100x98
=9800
25x50x25x20x40
=(25x40)x(50x20)x25
=1000x1000x25
=1000000x25
=25000000
渚涘弬钥冦