34+47-15= 91-19-56= 33+27+18= 15+55-33= 89-39-26= 12+18+37= 29+28+27=

51-16+26= 28+18-27= 89-19-28= 100-17-38= 18+49+28= 22+49-22= 21-8+39=

66-27+19= 38+14+19= 29+27+26= 37-29+16= 45+55-22= 100-65=26= 100-39-45=

24+47-26= 88-66+49= 28+19+17= 56+26-39= 67+27-45= 51-22+39= 3-37+38=

29+36-29= 30-13+68= 100-87+48= 66-39+47= 5-18+37= 100-55+45= 100-17-38=

18+49+28= 22+49-22= 21-8+39= 66-27+19= 38+14+19= 29+27+26= 37-29+16=

45+55-22= 100-65=26= 100-39-45= 24+47-26= 88-66+49= 28+19+17= 56+26-39=

67+27-45= 51-22+39= 73-37+38= 29+36-29= 30-13+68= 100-87+48= 66-39+47=

25-18+37= 100-55+45= 48+21-18= 50+12-11= 16-13+22= 25+33-14= 25+13-17=

26-18+10= 62-38+25= 34-31+28=

60－49＋28=

15-6+36=

73--40+20= 20+6-7=

65+37= 61+29= 63+26= 83+17= 57+10= 3+50= 7+12= 69+19=

49+20= 20+13= 9+85= 27+24= 23+13= 37+58= 6+76= 34+41=

45+37= 35+62= 37+31= 19+30= 30+38= 37+17= 39+52= 85+7=

94-32= 83-32= 26-10= 54-15= 19-3= 75-58= 54-48= 80-48=

83-47= 60-47= 85-48= 67-3= 67-4= 55-8= 1 7-10= 61-7=

98-59= 61-34= 33-5= 40-26= 98-11= 61-6= 77-35= 60-12=

96-37= 77-21= 56-5= 92-76= 53-53= 41-21= 80-67= 54-22=

19-8= 58-54= 69-10= 56-23= 90-3= 86-43= 72-19= 80-41=

2．竖式计算、

37+46-54= 81-32-27= 　42-34+57= 28+35+23= 44-27＋16=　

76+18-55= 　19+32+39= 46+29-37= 44-32+68= 58-（26+12）=

78-24+39＝ 64+20－6＝ 27+46-54= 　　 61-12-27= 52-34+47=

18+4-10= 45+25+27= 90-56-25= 12+30-23= 56-42-8=

56+43-90= 23+65-10= 98-76-14= 63-48+26= 63+17-28=