小学数学六年级总复习简便运算练习题4351999= 1225= 3625 = 2825 = 2843598= 259468741532= 37002185815= 430216184=321446856= (1525)2= 60(15500)= 1 25(84)= (24)15= 9649 = 5(206)= 823827= 759975=8(1259)= (40016)5= 1704804=9914= 10236= 498080= 679339=10356= 13681332= 2763827662= 10226=2847144251= 12151235= 311282831= (25250)4= (125125)8= ( - )=36 = 258= (- )60 = 101- 99 + ( + ) + - 325 (138)125 20(175) 14205 +25(4032) (57)80 8141256 16255425134 4825125 (15)