[2.1+3.61÷(7.2-5.3)]x30简便运算

[2.1+3.61÷(7.2-5.3)]x30简便运算
2025-02-25 11:24:07
推荐回答(1个)
回答1:

=(21+36.1/1.9)x3
=(21+19)x3
=120