(9)1.2×99(10)9÷0.25(11)4.7×5.9+5.2×4.7-4.7×0.1(12)3.6×2.4+36×0.76(13)(3.25×7+3.25)×0.125(14)37.5÷8÷1.25(15)1.11-8.5×(7.1-0.11)×0