10-2=8 11-3=8 13-5=8 14-6=8 15-7=8 16-8=8 17-9=8 10-2=8 11-3=8 12-4=8 12-4=8 13-5=8 14-6=8 15-7=8 16-8=8 17-9=814-5=9 14-6=8 14-7=7 14-8=6 14-9=5 14-9=5 14-8=6 14-7=7 14-6=8 14-5=910-8=2 11-8=3 12-8=4 13-8=5 14-8=6 15-8=7 16-8=8 17-8=9 17-8=9 16-8=8 15-8=7 14-8=6 14-8=6 13-8=5 12-8=4 11-8=3 10-8=2 我说你做。 10-5= 12-5= 11-5= 18-( )=9 13-5= 17-( )=9 15-( )=9 16-( )=9 11-9= 13-8= 15-7= 12-5= 14-( )=7 17-( )=8 5 7 9 7 5 8 9 7 7 2 6 8 8 610-4 10-5 10-7 10-8 11-3 11-6 11-7 11-9 13-6 12-5 15-9 12-8 12-9 1
