问题 解答题 直接写出得数:142-69=0.56÷8=6.4+335=1.2×56=5.4+9=0.6×0.6=715÷0.8=423-4512=315-16-56=37×25×5×7= 答案 142-69=73,0.56÷8=0.07,6.4+335=10,1.2×56=1,5.4+9=14.4,0.6×0.6=0.36,715÷0.8=9,423-4512=14,315-16-56=215,37×25×5×7=6.