1、小学 六年级数学小学数学简便运算练习题 12.065.072.94 30.349.7610.34 3 3 82574 3441.7 1.25 0.8 17 + 7 323141 9537,41.0619.7220.28 7 3 + 8 +2 115287495+7 +3325700145 18.62.50.4 13 2919727135.68(5.394.32) 19.68(2.979.68) 7 +( ) 5 (1285776 )83711.25(80.5) 0.25(41.2) 1.25(2130.8) 0.74(71 )107424( - - - ) (12+ ) 7 (7 - ) 12
2、8367253201989.3(4 )900.921.410.928.59 - 1.311.61.61.3 51637111.618.459599999+999+99+9 4821-998 3.212.525 1.2588 7.60.25 3.50.125 3.89.90.38 103-2572- 57(138)125 37002185815 20(175) 4725314205 25(4032) (57)80 4925 8141256 162554 259468741532 234540735 25645 25(64) (86)1251027.35.1 3.60.25 2.69.9 1.062.54