四百五十八减九十九用简便方法计算

四百五十八减九十九用简便方法计算
2025-02-27 05:22:46
推荐回答(2个)
回答1:

459-99
=459-(100-1)
=459-100+1
=359+1
=360

回答2:

458-99
=458-100+1
=358+1
=359