46x38+55x38-38简便计算
第1个回答 2017-06-27
=38×(46+55-1)
=38×100
=3800本回答被提问者和网友采纳
=38×100
=3800本回答被提问者和网友采纳
第2个回答 2017-06-27
46x38+55x38-38
＝46x38+55x38-1X38
=(46+55-1)X38
=100X38
=3800
＝46x38+55x38-1X38
=(46+55-1)X38
=100X38
=3800
