29/30x8=[( )-( )]x8=( )x8-( )x830分之29乘8=[( )减( )]乘8=( )乘8-( )乘8
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(125+6)X8=( )x8+( )x8
50+( )x8=25
125x8=?
29/30x8=[( )-( )]x8=( )x8-( )x830分之29乘8=[( )减( )]乘8=( )乘8-( )乘8
口算125x8=125x8=一定要口算
8X4.6+3.5X8+4.4X8=求这道题简算
(25+18)X8 = =
(125x8)+(25x4)=?
25x4=和125x8=
(5x―15)x8=72
(5x-15)X8=72
(5x-12)x8=24
25%x=16x8分之5,
找规律:1x8+1=9 12x8+2=98 123x8+3=987……123456x8+6=?
1x8+1=9,12x8+2=98,123x8+3=987,1234x8+4=9876照样子继续四道这样的题?
填空:( )8x891=198x8( )
(0.25+1/4+l/2)x8=
简便计算9.9x8.6+0.86=?