50以内不进位退位加减法(非常全)

50 以内不进位混合加减法 30+10= 21+20= 23+22= 26+10= 21+24= 23+15= 15+30= 31+16= 41+5= 37+11= 11+13= 23+10= 32+22= 22+14= 25+13= 33+10= 24+12= 21+10= 14+30= 22+17= 14+30= 14+31= 15+22= 16+21= 17+12= 21+12= 23+11= 17+30= 23+13= 15+20= 12+31= 21+22= 34+11= 28+21= 34+14= 35+12= 33+10= 24+12= 21+10= 17+30= 23+13= 15+20= 45-11= 36-12= 33-11= 21-10= 25-14= 48-15= 34-21= 47-17= 49-32= 32-21= 50-10= 29-17= 45-15= 49-22= 37-22= 38-11= 37-16= 33-11= 36-21= 44-14= 28-17= 45-11= 49-22= 29-17= 36-21= 36-12= 33-11= 38-11= 36-12= 50-10= 25-14= 49-22= 33-11= 47-31= 27-12= 37-27= 55-34= 48-17= 49-31= 35-24= 44-34= 27-13= 46-34= 38-17= 42-11= 46−30= 46-30= 46−30= 46−32= 46-32= 46−32= 49−48= 49-48= 49−48= 43−11= 43-11= 43−11= 44−11= 44-11= 44−11= 39+10= 39+10= 39+10= 40−20= 40-20= 40−20= 46−34= 46-34= 46−34= 11+36= 11+36= 11+36= 45−42= 45-42= 45−42= 50−20= 50-20= 50−20= 42−12= 42-12= 42−12= 49−31= 49-31= 49−31= 14+33= 14+33= 14+33= 35+12= 35+12= 35+12= 46−20= 46-20= 46−20= 22+22= 22+22= 22+22= 31+12= 31+12= 31+12= 12+35= 12+35= 12+35= 47−44= 47-44= 47−44= 17+30= 17+30= 17+30= 10+40= 10+40= 10+40= 12+34= 12+34= 12+34= 34+15= 34+15= 34+15= 46−13= 46-13= 46−13= 22+26= 22+26= 22+26= 17+32= 17+32= 17+32= 30+11= 30+11= 30+11= 20+29= 20+29= 20+29= 43−20= 43-20= 43−20= 34+12= 34+12= 34+12= 42−40= 42-40= 42−40= 33+15= 33+15= 33+15= 42−11= 42-11= 42−11= 49−35= 49-35= 49−35= 49−16= 49-16= 49−16= 45−32= 45-32= 45−32= 47−6= 47-6= 47−6= 23+20= 23+20= 23+20= 20+21= 20+21= 20+21= 16+31= 16+31= 16+31= 47−23= 47-23= 47−23= 42−21= 42-21= 42−21= 27+20= 27+20= 27+20= 25+24= 25+24= 25+24= 20+28= 20+28= 20+28= 26+21= 26+21= 26+21= 48−44= 48-44= 48−44= 33+10= 33+10= 33+10= 11+30= 11+30= 11+30= 34+12= 34+12= 34+12= 46−42=...