5-2= 15-3= 15-4= 2+7= 2+8=2+9= 2+10= 2+11=15-10= 14-1= 14-2= 14-3=14-4=1+16= 1+17= 1+18= 1+19= 2+0=19-5= 19-6= 19-7= 19-8= 19-9=2+12= 2+13= 2+14= 2+15= 2+16=15-5= 15-6= 15-7= 15-8= 15-9=18-10= 17-1= 17-2= 17-3= 17-4=20以内加减法口算练习题㈨姓名:_____________做对了_____________题2+17= 2+18= 3+3= 3+4= 3+5= 19-10= 18-1=18-2= 18-3= 18-4= 3+16= 3+17= 4+4= 4+5= 4+6= 13-5= 13-6= 13-7= 13-8= 13-9=4+7= 4+8=4+9= 4+10= 4+11= 13-10= 12-1= 12-2= 12-4= 12-5= 4+12= 4+13= 4+14= 4+15= 4+16= 11-1=11-2= 11-3= 11-4= 11-5= 6-5= 6-6= 5-1= 5-2=