2道递等式计算，谢谢

Question

如题所述

Answer 1

（14.5×2.3+8.6）×100-0.2
原式=（33.35+8.6）×100-0.2
=41.95×100-0.2
=4195-0.2
=4194.8

0.73×[0.9+3.68×（20-1.6）]
原式=0.73×（0.9+3.68×18.4）
=0.73×（0.9+67.712）
=0.73×68.612
=50.08676