2.73-1.98怎样简便计算?
问题描述:
2.73-1.98怎样简便计算?
答
2.73-1.98
=2.73-(2-0.02)
=0.73+0.02
=0.75
2.73-1.98怎样简便计算?
2.73-1.98
=2.73-(2-0.02)
=0.73+0.02
=0.75