99ᘧ࿾7锧77ᘧ࿾9+33ᘧ࿾18怎么巧算?

2025-02-24 02:33:45
推荐回答(1个)
回答1:

99X7十77X9十33X18
=99X7十99X7十99X6
=99X(7十7十6)
=99X2O
=1980