共30题 用时5分钟

95-89=

88-56=

92-4×3 =

80-56=

36+36=

6+6×5 =

71+26=

61+39=

77-7×6 =

69+26=

64+36=

67-6×9 =

58-46=

28+58=

60-6×5 =

25+57=

51+28=

5+4×4 =

46+37=

68-56=

82-9×1 =

29+42=

19+38=

18-9×1 =

52+38=

43+26=

69-9×3 =

36+28=

54+42=

83-9×3 =