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,练习三,11 -( )=( ) 11 -( )=( ),4,7,7,4,13 -( )=( ) 13 -( )=( ),5,8,8,5,12,-,7,13个,13,-,7,6,?个,先说得数,再写算式,-,12-,11-,13,15,14,16,11,10,17,12,比一比,看谁算的又对又快!,12-7 14-8 13-6 15-7 14-7+5= 11+4-8=,12-4 16-9 14-5 17-8 17-8-7= 12-6+8=,12-4 8+9 11-2 15-9 9+5+6 13-4+9,找朋友,14-8,5,12-4,15-8,14-9,13-6,13-8,14-8,11-3,16-9,12-5,6,7,8,抢答,8,6,7,4,7,6,5,4,6,7,8,9,比大小,11-5 7 13-6 5 12-3 9 14-8 4 15-7 6 16-9 8,12只小鸡,我已捉住5只,还有几只?,12,-,5,7,11-9,18-9,11-8,11-7,11-6,11-5,11-4,11-3,11-2,12-9,12-8,12-7,12-6,12-5,12-4,12-3,13-9,13-8,13-7,13-6,13-5,13-4,14-9,14-8,14-7,14-6,14-5,15-9,15-8,15-7,15-6,16-9,16-8,16-7,17-9,17-8,