37-4= 37-23= 6+30= 3+47= 31-25= 48-33= 21+5= 43-35= 20-16= 31-29= 47-13= 25+9= 5+41= 6+18= 33-10= 40-6= 32+9= 30+6= 3+39= 5+45= 30-23= 27-1= 32-26= 15+8=
46-29= 35-22= 21+12= 27+1= 44-38= 34-19= 4+28= 48-21= 46-5= 9+35= 30+9= 44-27= 22+12= 29+18= 25+15= 48-22= 23-17= 12+19= 14+21= 31-12= 35-33= 14+16= 43-27= 43-19= 45-9=
18+19= 22-12= 10+24= 12+37= 41-22= 7+36= 27+19= 43-26= 3+35= 6+42= 45+5= 50-23= 44-3= 41-23= 8+21= 25+4= 29+18= 1+44= 48-6= 13+29= 4+39= 10+10= 27+18= 27+15= 33-8=
26+8= 5+38= 50-47= 30-28= 26-11= 17+4= 40-20= 44+2= 25-24= 39-5= 1+42= 43-23= 7+43= 8+14= 39-30= 4+37=
50以内口算第11页/ 共60页
29+13= 13+22= 13+30= 33+16= 10+12= 16+33= 16+25= 23+27= 11+13= 13+34= 26-10= 24-2= 32-27= 35+6= 31-12= 43-27= 8+23= 48-14= 45-2= 1+35= 34+9= 4+21= 38-37= 30+8= 42-29= 46-41= 25+2= 5+40= 20-7= 32+16= 22+8= 26-25= 7+15= 6+36= 38-34= 42-10= 11+15= 20+9= 8+16= 47+3= 36-28= 14+16= 16+27= 17+13= 35+13= 22+19= 42-33= 30-29= 9+16= 21-6= 40+8=
31+8= 12+26= 44+6= 33+12= 27-5= 25+11= 32-12= 28+12= 1+32= 39-15= 9+22= 29-1= 37-31= 7+17= 42-29= 15+24= 21-3= 25+14= 44-43= 25+7= 34+2= 27+6= 49-14= 1+37= 25-25=
26-16= 19+28= 44-14= 28-9= 43-17= 9+20= 26-24= 8+33= 26+15= 27+9= 31-2= 35+9= 11+26= 35-21= 33+9= 17+9= 36+7= 20-12= 36-34= 29-24= 46-28= 2+42= 15+10= 46-27= 27+19=
50以内口算第12页/ 共60页
11+28= 30+20= 25+11= 22+28= 17+31= 28+20= 37+12= 26+21= 20+26=
14+21= 9+35= 25-3= 49-12= 46-44= 25-15= 1+36= 45-30= 46-22= 47+1= 21+17= 33-21= 40-15= 47-11= 24-1= 29-28= 33-31= 22-20= 12+36= 46+1= 24-10= 35-8= 39-19= 37+5= 22+17=
15+15= 34-17= 44-17= 29+4= 23-5= 31-12= 13+11= 30-4= 29-9= 39-24= 24-20= 18+27= 49-34= 3+17= 8+34= 29-14= 40-9= 4+19= 26-7= 4+25= 2+38= 37-20= 3+25= 34+11= 30+14=
44-16= 26-24= 26-10= 46-8= 18+10= 37+6= 8+31= 38-32= 27-23= 15+32= 23-1= 23-12= 17+8= 7+41= 21+10= 40-10= 8+30= 29-6= 38-19= 3+43= 27-20= 43-2= 2+45= 25-5= 20+27=
20-5= 34+7= 39+9= 34-14= 43-4= 45-22= 35-17= 7+25= 3+38= 26+3= 6+26= 38-23= 21-20= 43-42= 38+3= 21-20= 28-17= 42-40= 39-7= 24-14= 24-15= 40-7= 48-23=50以内口算第13页/ 共60页
15+16= 22+18=
31+15= 13+12= 1+32= 24-17= 16+14= 33-21= 4+26= 31+19= 11+37= 38-36= 11+15= 15+13= 9+31= 49+1= 36-12= 23+3= 19+3= 31-23= 31+5= 2+31= 45-6= 33+5= 47-17= 3+19= 26-18=
41+2= 35-26= 21+15= 12+37= 36-34= 19+30= 28-21= 16+16= 8+35= 35-6= 19+1= 24-12= 21+8= 23-8= 50-13= 37+4= 21+7= 25-9= 14+29= 42+4= 43-19= 27-20= 6+27= 46-26= 7+33=
20+28= 25+15= 24+10= 28+20= 27-25= 13+28= 34-3= 9+35= 26+11= 11+39= 30-26= 45+1= 8+37= 44-38= 33+10= 19+18= 31+12= 33-10= 35-6= 41-13= 30+20= 11+25= 26-5= 38-13= 40-30=
5+29= 35-23= 41+6= 1+22= 18+5= 6+39= 31-28= 35+8= 38-5= 37+5= 20+4= 47-38= 26-20= 9+26= 41-30= 48-37= 26-15= 33-17= 24-14= 43-23= 21-2= 27-6=
50以内口算第14页/ 共60页
17+27= 18+28= 18+19= 29+12= 20-16= 24+1= 43-17= 12+14= 31-10= 22-15= 20-15= 48-9= 49-18= 38-22= 22+12= 45+4= 15+18= 21-18= 6+24= 2+47= 45+2= 3+45= 3+35= 25-22= 26+10= 47-12= 27-16= 34+8=
11+30= 39-26= 40+5= 23+16= 13+30= 37-7= 3+27= 20+2= 49-2= 25+20= 24-8= 47-47= 48-47= 23+23= 25+13= 2+40= 29+14= 8+40= 35-2= 28-2= 26-10= 43+3= 3+41= 37-30= 28-17=
6+29= 1+49= 34-12= 37+12= 24-7= 20-4= 33-2= 3+20= 31-19= 15+6= 31-6= 45-21= 48-27= 37-18= 47-14= 12+15= 12+26= 30-1= 20-8= 42-16= 39-10= 5+43= 20-5= 32-31= 37-30=
20+29= 25-4= 36+12= 22-3= 47+3= 22+28= 41+3= 11+17= 11+21= 21-19= 46-8= 49-32= 13+16= 33+6= 20-15= 37-22= 40+1= 47-37= 30-25= 15+35= 10+30= 43-27= 2+30= 34+2= 16+23=
50以内口算第15页/ 共60页