Un banco de pruebas de matemáticas para sumas y restas para estudiantes de segundo grado de primaria.

12+6= 29-7= 33+2= 3+40= 15+4= 23+5= 37+1= 29-3= 38-3= 15-4= 18-2 = 38= 43+1= 86+2= 73= 30-2= 72-2= 66-4= 39-2= 2 0-9= 53+5= 35+2= 39-4= 8+50= 20-1= 46= 62+7= 89-5= 63+3= 34-2= 50-4= 11+2= 53-3= 68= 80-7= 32+ 4= 26-5= 84+4= 35-10= 765438+ 9= 18-4= 66+10= 83-3= 71+5= 60-5= 36+3= 58+30= 28- 7= 87-10= 80-6= ​​11+9= 80-3= 95-4= 64+3= 98-4= 25+7= 62-2= 83+5= 83+10= 1 8= 56+20= 64+6= 65+3= 15-3= 30-3= 32+6= 29-7= 35+2= 7 3+4= 25+4= 43+5= 87+10 = 3 9-3= 48-30= 95-40= 81-2= 68= 39+10= 76+10= 730= 48-9= 47-8= 52-4= ​​43- 8= 68- 9= 40-2= 27-9= 32-4= 41-2= 38-9= 50-8= 63-9= 37-8= 56-20= 88-9= 75-9= 92-3= 42-7= 76 5438+0-6= 58-10= 47-8= 26-7= 52-3= 69-10= 63-5= 80-2= 36-9= 78-4 = 65-8 = 99-9= 72-2= 45-9= 86-8= 96-2= 24-9= 40-2= 46-9= 43-4= 18-2= 3 8-8= 35+5= 85+2= 59-4= 78+10= 82-5= 64+6= 32+7= 49-5= 63+3= 84-2= 60-4= 11+20= 45- 3= 3 8= 60-7= 25+4= 36-5= 84+4= 52-3= 71+9= 88-4= 76+0= 93-3= 18+5= 70-5= 56+20= 64+6= 65+3= 15-3= 30-3= 32+6= 29-7= 35+2= 7 3+4= 25+4= 43+5= 87+10= 3 9-3= 48-30= 95-40= 865438+ 0-2= 68= 39+10= 76+10= 730= 48-9= 47-8= 52-4= ​​43- 8= 68-9= 40-2= 27-9= 32-4= 41-2= 38-9= 30-2= 72-2= 66-4= 39-2= 20-9= 53+5= 35+2= 39- 4= 8+50= 20-1= 46= 62+7= 89-5= 63+3= 34-2= 50-4= 11+2= 53-3= 6 8= 80-7= 32+4= 26-5= 84+4= 35-10= 71+9= 12+6= 29-7= 33+2= 3+40= 15+4= 23+5= 37+1= 29- 3= 38-3= 15-4= 18-2= 38= 43+1= 86+2= 73= 30-2= 72-2= 66-4= 39- 2= ​​20-9= 53+5= 35+2= 39-4= 8+50= 20-1= 16+9= 5+18= 17+3= 36+6= 29+5= 87+9= 48+8= 35+ 8= 4+19= 7+26= 4+37= 29+4= 19+8= 29+7= 7+38= 9