98x23 46和333x666 778x999的简便计算

2024-11-25 19:49:25
推荐回答(2个)
回答1:

98x23+46
=98x23+23×2
=(98+2)×23
=100×23
=2300
666x333+778x999
=222x3x333+778x999
=999x(222+778)
=999x1000
=999000

回答2:

98×23+46=98×23+2×23=(98+2)者谈销皮×23=100×23=2300
333×666+778×999=333×3×222+778×999=999×222+999×778=(首斗碰222+778)×999=1000×999=999000