fzt81007-2022道客巴巴

贡询花4269495 - 202简便运算 -
殷阳卿13783052997 ______ 495-202=495-(200+2)=495-200-2=295-2=293

贡询花4269521 - 202怎么简便计算? -
殷阳卿13783052997 ______ 521-202 =521-201-1 =320-1 =319 所以这里可以通过简便计算得到319.

贡询花4269估算701 - 202的结果约是几 -
殷阳卿13783052997 ______ 估算701-202的结果约是几701-202≈500 把701看成700202看成200700-200=500

贡询花4269487 - (198 - 113) - 202简算 -
殷阳卿13783052997 ______ =(487+113)-(198+202) =600-400 =200

贡询花4269851 - 202的简便运算怎么算 -
殷阳卿13783052997 ______ 851-202的简便运算怎么算851-202=851-200+2=651+2=653