脱式计算6.5x2.8x4.5 0.28x0.6+3.2718.15-2.86x4.1 (9.3-4.4)x0.04(2.5+1.25)x8 4.9x10136x9.8 47.9x9+47.91.25x3.7x0.8 0.53x3.6+0.47x3.64x13.8x2.5 (10-3.56)0.5 0.34x1.8+0.66x1.89.07-22.783.4 2.38(59.50.25)2.3+3.91(22-19.7) 18-(1.4+1.25x2.4)1.6 (5.2+4.8)x0.8 6.750.9(0.3x0.4)0.8+1.20.75 16.2(48.6+5.4)x0.50.36(6.1-4.6)x0.8 5.518-(5.2+3.8)