,不进位加法 1+0= 11+1 21+2 31+3= 41+4= 51+5= 61+6= 71+7= 81+8= 52+5= 62+6= 72+7= 2+0= 12+1 22+2 32+3= 42+4= 2,进位加法 9+1= 19+2= 29+3= 39+4= 49+5= 59+6= 69+7= 79+8= 89+9= 99+1= 78+8= 88+9= 8+2= 18+2= 28+3= 38+4= 48+5= 58+6= 68+7= 3,不退位减法 9-1= 19-2= 29-3= 39-4= 49-5= 59-6= 69-7= 79-4= 89-5= 58-26= 68-3= 78-2= 8-1= 18-2= 28-3= 38-4= 48-2= 4,退位减法 11-2= 21-2= 31-3= 41-4= 51-5= 61-6= 71-7= 81-8= 91-9= 82-8= 92-9= 12-3= 32-3= 42-4= 52-5= 62-6= 72-7= 7+8= 13-9= 11-9= 7+4= 14-9= 12-7= 16-7= 11-7= 13-7= 15-7= 6+7= 11-8= 15-8= 14-8= 11-9= 17-7= 13-7= 14-7= 13-9= 16-7= 16-9= 12-4= 13-5= 13-4= 7+8= 12-7= 13-6= 12-9= 15-7= 15-6= 15-6= 16-8= 11-3= 13-4= 7+6= 12-3= 15-8= 10-8= 13-6= 11-7= 17-9= 10-9= 3+8= 7+9= 15-9= 12-9= 8+6= 18-9= 7+7= 16-9= 12-2= 10-9= 17-9= 8+4= 11-9= 15-9= 18-9= 9+3= 7+7= 14-9= 16-9= 13-9= 19-9= 2+9= 6+7= 8+9= 8+5= 8+6= 8+3= 8+4= 17-8= 10-5= 11-7= 11-4= 17-8= 13-8= 14-8= 11-8= 7+5= 7+9= 7+4= 7+6= 7+8= 14-7= 17-8= 13-7= 11-6= 12-8= 16-7= 15-8= 5+8= 17-7= 11-8= 12-9= 18-9= 7+8= 12-7= 14-8= 13-9= 12-7= 13-9= 17-9= 13-4= 11-3= 17-9= 13-6= 15-7= 13-6= 11-3= 3+9= 14-6= 15-8= 13-5= 10+9= 4+8= 12-3= 12-6= 11-4= 14-5= 12-5= 16-9= 3+8= 5+30= 49-9= 50-30= 12-2= 3+60= 37-7= 16-8= 40+40= 26-6= 75-70= 85-5= 4+50= 67-60= 89-9= 20+80= 59-50= 23-3= 35-30= 4+60= 86-6= 28-20= 55-50= 91-1= 74-70= 8+40= 6+60= 28―20= 40+60= 60-60= 16―8= 90―70= 83―3= 99―9= 100-50= 14―5= 85-5= 92-90= 32-2= 45-40= 65-5= 80+20= 100-60= 67-60= 84-80= 54-4= 63-3= 75-70= 48-8= 79-9= 90-20= 2+4+9= 18-9+4= 14-9+6= 13-9+8= 6+8―5= 4+5+8= 20+40―30= 62-2+40= 14-7+8= 10-8+8= 10-8+90= 44―4―10= 14-7+6= 16-7-6= 3+8-7= 9+6-7= 12-4+9= 11-5+7= 2+3+7= 14-5-6= 12-5-6= 5+8-9= 11-2+3= 5+6-8= 12-7+4= 5+7-8= 6+8-7= 14-8+6= 5+8-9= 15-7-6= 4+7-8= 12-9-3= 12-9+8= 16-9+5= 6+8-9= 7+8-5= 15-9+7= 5+8-9= 8+8-9= 4+7-9= 16-8+7= 14-6+9= 17-9+5= 13-5+3= 6+9-7= 11-6+8= 10-1+7= 15―7―2= 9+3-6= 8+8-7= 15-9+5= 5+9-7= 4+5+9= 9+3-6= 16-9+7= 15―7―8= 7+5-4= 11-8+9= 14―4―7= 8+5-6= 11―2―5= 13―8+7= 17―9+6= 2+6+8= 12-3+6= 13-5+2= 7+9-8= 2+9-5= 5+7-4= 13-7+3= 12-6-6= 5+10-6= 7+4-5= 11-5+7= 4+8-7= 16-8+9= 6+6-9= 5+4-9= 11-9+8= 18-9-5= 9+8-9= 10-1+7= 15-9+7= 6+7-9= 13-7= 17-9= 8+6= 12-5= 5+7= 18-9= 16-7= 5+8= 16-9= 13-5= 12-8= 14-6= |