35乘以40.2 的简便计算
问题描述:
35乘以40.2 的简便计算
答
=35*(40+0.2)
=35*40+35*0.2
=140+7
=147
35乘以40.2 的简便计算
=35*(40+0.2)
=35*40+35*0.2
=140+7
=147