共30题用时5分钟

72-56=

7×7 =

71-8×6 =

27+69=

6×5 =

98-2×6 =

91-73=

41-28=

54-8×2 =

35+37=

49+47=

23-7×9 =

23+38=

62+19=

17-5×3 =

98-25=

55-25=

63-9×6 =

3×3 =

27+56=

34-9×3 =

8×6 =

97-54=

54-5×6 =

4×5 =

51-35=

48-8×2 =

3×6 =

46+45=

56-9×3 =