19+1.9+2.99+3.999+4.9999

2025-01-31 11:08:57
推荐回答(1个)
回答1:

19+1.9+2.99+3.999+4.9999
=20-1+2-0.1+3-0.01+4-0.001+5-0.0001
=33-0.1111
=32.8889