如题所述
第1个回答 2017-04-16
9.9×3.5
=(10-0.1)×3.5
=10×3.5-0.1×3.5
=35-0.35
=34.65
=(10-0.1)×3.5
=10×3.5-0.1×3.5
=35-0.35
=34.65
第2个回答 2017-04-16
=（10-0.1）×3.5
=10×3.5-0.1×3.5
=35-0.35
=34.65
=10×3.5-0.1×3.5
=35-0.35
=34.65
第3个回答 2017-04-16
9.9×3.5
=10×3.5-0.1×3.5
=35-0.35
=34.65本回答被网友采纳
=10×3.5-0.1×3.5
=35-0.35
=34.65本回答被网友采纳
第4个回答 2021-09-18
9.9×3.5
=(10-0.1)×3.5
=10×3.5-0.1×3.5
=35-0.35
=34.65
=(10-0.1)×3.5
=10×3.5-0.1×3.5
=35-0.35
=34.65
