问题 解答题 口算13-14=34+56=58×2425=2-512-712=16+34+56+14=35×1516= 答案 13-14=112,34+56=1912,58×2425=35,2-512-712=1,16+34+56+14=2,35×1516=916.故答案为:112,1912,35,1,2,916.