5,23一1,27十(3,77一2,73)简便计算?

2025-03-01 10:24:40
推荐回答(2个)
回答1:

简便计算就是尽量凑整
原式=(5.23+3.77)-(1.27+2.73)
=9-4
=5

回答2:

=5.23+3.77-(1.27+2.73)
=9-4
=5