27.38-5.34+2.62-4.66=??把简便运算(递等式)写出来

2025-03-06 14:45:58
推荐回答(2个)
回答1:

27.38-5.34+2.62-4.66
=(27.38+2.62)-(5.34+4.66)
=30-10
=20

0.07
0.12
0.36
+0.45
-----
1.00

回答2:

27.38-5.34+2.62-4.66
=27.38+2.62-5.34-4.66
=30-10
=20

0.07+0.12+0.36+0.45=1