四年级数学简便计算题-加减乘除混算

李婷 1172分享

  158+262+138

  375+219+381+225

  5001-247-1021-232

  (181+2564)+2719

  378+44+114+242+222

  276+228+353+219

  (375+1034)+(966+125)

  (2130+783+270)+1017

  99+999+9999+99999

  7755-(2187+755)

  2214+638+286

  3065-738-1065

  899+344

  2357-183-317-357

  2365-1086-214

  497-299

  2370+1995

  3999+498

  1883-398

  12×25 75×24

  138×25×4 (13×125)×(3×8)

  (12+24+80)×50

    165321