怎样简便计算8.7乘以9.98
问题描述:
怎样简便计算8.7乘以9.98
答
8.7*9.98
=8.7*(10-0.02)
=87-0.194
=86.806
怎样简便计算8.7乘以9.98
8.7*9.98
=8.7*(10-0.02)
=87-0.194
=86.806