560-557+554-551+……+500-197
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![560-557+554-551+……+500-197](/uploads/image/z/2607295-31-5.jpg?t=560-557%2B554-551%2B%E2%80%A6%E2%80%A6%2B500-197)
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560-557+554-551+……+500-197
560-557+554-551+……+500-197
560-557+554-551+……+500-197
197应该是497,
560-557+554-551+……+500-497
=(560-557)+(554-551)+……+(500-497)
=3+3+.+3(11个3)
=33.
560-557+554-551+……+550-497
560-557+554-551+……+500-497
560-557+554-551+……+500-197
560-557+554-551+……+500-497
560-557+554-551+...500-497=
560-557+554-551+...500-497=?
求文档:运算定律与简便计算560-557+554-551+...+500-497怎么算
560-557+554-551+...+500-479求所有运算公式(四年级奥数题)
一道数学题、 551+552+553+554+555+556+557=( ) * ( ) = ( )
551+552+553+554+555+556+557=()×()=()
551+552+553+554+555+556+557算得数用乘法怎么算
真正的奥数题,560-557+554-551.+500-4974000-1-2-3.-78
1+2+3+4+5+6+7+8+9+10.+550+551=552=553+554+555=?
[(12/5)x]/(5-x)=(5-x)/[(48/5)x] 求解化简完应该是这个……551x^2+250x-625=0
557除以5用竖式计算
5,6题 …………
1十5二………………
5题答案………………