四年级下册整数和小数加减法简便计算专项练习,附答案

352-(133+152)=67359-(39+259)=61253-(91+153)=9808-(25+708)=75463-(263+77)=123898-(27+698)=173760-(46+660)=54967-(281+667)=19187-(31+87)=69359-(159+168)=32721-(621+16)=84853-(553+38)=262510-(137+310)=63860-(124+560)=176779-(248+479)=52...