www.qrfg.net > x3333

x3333

原式 =3333x(3000+333) =3333x3000+3333x333 =9999000+3333x3x111 =9999000+9999x111 =9999000+(10000-1)x111 =9999000+10000x111-111 =9999000+1110000-111 =11108889

3333x3333+9999x8889 =1111x3x3333+9999x8889 =1111x9999+9999x8889 =9999x(1111+8889) =9999x10000 =99990000

9999×8889+3333×3333+9 =9999×8889+1111×3×1111×3+9 =9999×8889+9999×1111+9 =9999×(8889+1111)+9 =9999×10000+9 =99990000+9 =99990009

=(1000-1)X7778+9999X(6/9)X9999X(3/9)=7770002+(10000-1)X(10000-1)X(2/9) =7770002+2237778=10008000

原式 =3333*3*2222+3333*3334 =3333*(3*2222+3334) =3333*10000 =33330000

4444x3333+2222x3334简便计算 4444x3333+2222x3334 =2222*2*3333+2222*3334 =2222*(6666+3334) =2222*10000 =22220000

原式=9999×1111+9999×8889=9999×(1111+8889)=9999×10000=99990000

3333x3333+9999x8889+9=9999x1111+9999x8889+9=9999x(1111+8889)+9=9999x10000+9=20008

9999x2222+3333x3334 =3x3333x2222+3333x3334 =3333(6666+3334) =3333x10000 =33330000

你确定不是9999,如果是9999,那么9999x7778+3333x6666=9999x7778+9999x2222=9999x(7778+2222)=9999x10000=99990000

网站地图

All rights reserved Powered by www.qrfg.net

copyright ©right 2010-2021。
www.qrfg.net内容来自网络,如有侵犯请联系客服。zhit325@qq.com