共30题用时5分钟

85-36+27=

53-29+19=

35+12-28=

77-65-6=

36-27+9=

77-19-16=

32+45-38=

12+79-62=

51-27+28=

53-37+15=

71-52+36=

75-24+26=

36+34-14=

81-45+36=

24-16+40=

100-76+22=

63-23+28=

48-26+18=

21+82+17=

73+12-71=

21+82-60=

68-65-3=

72-45+32=

54-21-18=

63+18+11=

83-27+10=

54+21-18=

85-28-28=

54-52+17=

88-51-24=