30以内加减法 D
13-7= 25-11= 21-11= 28-10= 27-11= 25-10= 22-6= 11-7= 30-23= 30-24= 13+14= 20-5= 26-20= 28-22= 13-4= 22-19= 30-28= 23-11= 24-15= 26-9= 27-13= 30-16= 27-18= 21-12= 12+15= 21-16= 28-11= 24-16= 21-7= 30-29= 26-23= 20-19= 21-3= 11-5= 23-6= 16-8= 20-17= 25-12= 24-19= 25-13= 23-15= 12-9= 30-7= 30-13= 30-14= 24-6= 14-7= 11+12= 25-15= 14-8= 29-21= 27-24= 26-15= 27-9= 23-7= 11-4= 21-8= 28-15= 23-13= 26-16=
28-24= 11+17= 24-18= 27-25= 28-17= 29-25= 25-14= 24-20= 9+9= 11+13= 29-19= 9+16= 11-9= 21-19= 30-27= 23-10= 20-16= 24-8= 24-9= 9-4= 30-15= 27-21= 28-16= 11+11= 22-10= 20-4= 9+8= 8+21= 20-9= 14+16= 20-11= 21-13= 25-21= 9+17= 18+9= 8+22= 30-20= 21-9= 5+3= 9-5= 22-21= 25-6= 25-24= 11-6= 15-9= 16-7= 25-16= 30-12= 25-9= 23-14= 25-7= 21-15= 28-23= 30-2= 29-14= 23-18= 25-18= 12+16= 30-8= 29-23=
30-21= 22-13= 21-18= 23-4= 22-16= 30-26= 24-17= 11+14= 24-23= 28-18= 15-8= 13-8= 27-23= 26-11= 11+15= 28-19= 26-24= 27-15= 20-6= 13+15= 30-10= 13+17= 14-9= 15-6= 26-22= 24-21= 29-20= 13-9= 14-5= 11+19= 28-26= 29-10= 6+4= 24-12= 17-8= 23-17= 20-7= 23-22= 24-5= 29-24= 25-19= 24-14= 22-9= 30-3= 20-1= 12-6= 12-5= 28-27= 30-25= 25-20= 30-5= 23-16= 26-10= 11-8= 26-7= 26-21= 6+5= 27-8= 21-2= 22-4=
21-17= 12-7= 29-15= 7+5= 14-6= 27-16= 12+17= 21-6= 13+16= 20-3= 15+15= 9+15= 11-3= 23-5= 20-14= 13-5= 22-18= 7+8= 13+13= 9-8= 6+4= 24-12= 17-8= 23-17= 20-7= 23-22= 24-5= 29-24= 25-19= 24-14= 22-9= 30-3= 20-1= 12-6= 12-5= 28-27= 30-25= 25-20= 30-5= 23-16= 26-10= 11-8= 26-7= 26-21=
6+5= 27-8= 21-2= 22-4= 21-17= 12-7= 29-15= 7+5= 34-8= 19+9= 30-22= 23+7= 22-8= 11-6= 18-9= 22-5=
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