199 202 405 298的简便计算

2025-04-04 13:24:06
推荐回答(2个)
回答1:

199+202+405+298
=200-1+400+5+(202+298)
=200+400+500+(5-1)
=1100+4
=1104

回答2:

199+202+405+298
=(202+298)+405+200-1
=500+404+200
=1104