问题 解答题 直接写出得数.23-512=0.9-0.26=1.2×56=415÷835=1-38÷58=1.25×3×8=13-0.52=10.2-0.32-0.68= 答案 23-512=140.9-0.26=0.641.2×56=1415÷835=761-38÷58=251.25×3×8=3013-0.52=0.7510.2-0.32-0.68=9.2