文档介绍：32+6= 29-7= 35+2 =73+4= 25+4= 43+5= 87+ 10=39- 3= 48- 30= 95- 40= 81-2= 60+8= 39+ 10 = 76+ 10= 70+ 30= 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= 40+6= 62+7= 89-5 = 63+3= 34-2= 50- 4= 11+2= 53-3 = 60+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= 30+8= 43+1 = 86+2= 70+3= 30-2= 72-2= 66-4=3 9-2= 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+18 = 40+6= 35+30= 62+8= 75+5= 23+7= 26+8 = 19+60= 32+8= 16+9= 24+6= 5+37= 44+7 = 67+9= 50+8= 61+9= 85+4= 91+8= 82+5 = 39+1= 46+7= 23+7= 37+4= 78+3= 27+6 = 39+8= 68+5= 9+25= 85+6= 92+4= 86+2 = 48+7= 39+9= 2+38= 56+8= 36+5= 35+6 = 46+9= 9+25= 23+8= 46+6= 90+9= 84+7= 3 4+7= 56+3= 12+9= 93+3= 58+3= 75+7 = 35+6= 86+8= 39+2= 27+4= 50+5= 34+9= 1 0+60= 9+50= 10+40= 61+10= 18+5= 74+6= 37+2 = 26+5= 23+7= 47+4= 88+3= 47+6= 3 9+8= 68+5= 26+8= 19+6= 28+5= 53+6= 7 8+5= 37+9= 23+ 6= 89+6= 75+5= 86+6= 6 8+7= 87+9= 26+9= 25+6= 50+37= 49+7 = 87+9= 50+8= 61+9= 85+4= 91+8= 82+5 = 39+10= 46+7= 73+7= 37+4= 78+3= 27+60 = 39+8= 68+5= 9+25= 35+6= 2+40= 86+2 = 48+7= 39+10= 16+9= 5+18= 17+3= 36+6 = 29+5= 87+9= 48+8= 35+8= 4+19= 7+26 = 4+37= 29+4= 39+8= 26+7= 7+38= 6+18 = 40+6= 35+30= 32+8= 25+5= 13+7= 86+8 = 19+60= 32+8= 16+9= 34+6= 5+37= 14+7