82.54+835.27-20.38⼀2+2*6.23-390.81-9*1.03用简便方法怎么算

2025-02-27 15:16:43
推荐回答(1个)
回答1:

1.82.54+835.27-20.38÷2+2×6.23-390.81-9×1.03
=82.54+835.27-10.19+12.46-390.81-9.27(试试凑整吧)
=520