0.2×25=53.5÷0.05=700.6×0.7=0.423÷6=0.50.48÷0.6=0.81.5×0.6=0.90.56÷0.7=0.81÷0.2=50.7×2.1=1.474.5×0.4=1.84÷5=0.88－6.9=1.10.45×2.5＝1.1250.8×1.25＝10.3×3.6＝1.080.3×0.3＝0.0910×0.07＝0.70.3×1.4＝0.420.05×7＝0.350.92×0.4＝0.3680.2×0.26＝0.0520.14×4＝0.560.02×0.1＝0.0021.2×0.3＝0.360.2×0.4＝0.088.2＋1.8＝10100－35.22＝64.782.3×4＝9.22.5×0.4＝12.4×5＝120.22×4＝0.883.25×0＝03.6×0.4＝1.4412.5×8=10050×0.04=280×0.3 =241.1×9=9.90.16×5 ＝0.81.78＋2.2 =3.989.6÷0.6 =161.2×0.5-0.4 =0.20.7÷0.01 =702.5×0.4 =112－13.9= -1.9（應該是1.9）1.25×8÷1.25 =86.6÷0.66 =105.37×0+4.63 =4.633.9＋2.03＝5.934.2÷3.5＝1.21.6+2.4×0.3 =2.122.14－0.9＝1.242.5÷0.7=3.57（保留三位小數）10.1÷3.3=3.09（保留兩位小數）10.75÷12.5=0.86（保留兩位小數）0.9－0.52＝0.383.99×1＝3.990×3.52＝012.5×8=1008÷10 =0.810-1.8-7.2=10.43+3.57=3.972.5×4×12=1200.18×15=2.70.025×14=0.353.06×36=110.160.04×0.12＝0.00483.84×2.6≈10.144（保留一位小數）5.2×0.6=3.128.4×1.3=10.926.4×0.5=3.24.48×0.4=1.7925.25×5=26.2535.4×4.2=149.880.042×0.54=0.022680.76×0.32=0.24320.25×0.046=0.01152.52×3.4=8.5681.08×25=270.12×0.5×0.16＝0.01124.8×0.25＝1.28.9×0.05=0.4453.215×100=321.50.8×10=84.08×100=4081.1×0.2 =0.220.6×0.8 =0.483×0.9=2.72.5×0.4=13.6×0.4=1.4412.5×8=10050×0.04=280×0.3 =241.1×9=9.90.16×5 ＝0.81.78＋2.2 =3.989.6÷0.6 =161.2×0.5-0.4 =0.20.7÷0.01 =702.5×0.4 =112－13.9= -1.9（應該是1.9）1.25×8÷1.25 =86.6÷0.66 =105.37×0+4.63 =4.633.9＋2.03＝5.934.2÷3.5＝1.21.6+2.4×0.3 =2.122.14－0.9＝1.242.5÷0.7=3.57（保留三位小數）10.1÷3.3=3.09（保留兩位小數）10.75÷12.5=0.86（保留兩位小數）0.9－0.52＝0.383.99×1＝3.990×3.52＝012.5×8=1008÷10 =0.810-1.8-7.2=10.43+3.57=3.972.5×4×12=1200.18×15=2.70.025×14=0.353.06×36=110.160.04×0.12＝0.00483.84×2.6≈10.144（保留一位小數）5.2×0.6=3.128.4×1.3=10.926.4×0.5=3.24.48×0.4=1.7925.25×5=26.2535.4×4.2=149.880.042×0.54=0.022680.76×0.32=0.24320.25×0.046=0.01152.52×3.4=8.5681.08×25=270.12×0.5×0.16＝0.01124.8×0.25＝1.28.9×0.05=0.4453.215×100=321.50.8×10=84.08×100=4081.1×0.2 =0.2