五年级小数乘除法计算题复习 一、计算题（30 分） 1、直接写出得数。 0.45 ×2.5＝ 0.8× 1.25＝ 0.3 ×3.6 ＝ 0.3 ×0.3＝ 10 ×0.07＝ 0.3 × 1.4 ＝ 0.05 × 7 ＝ 0.92 × 0.4 ＝ 0.2 × 0.26 ＝ 0.14 × 4 ＝ 0.02×0.1＝ 1.2×0.3＝ 0.2×0.4＝ 8.2＋1.8＝ 100－35.22＝ 2.3×4＝ 2.5×0.4＝ 2.4×5＝ 0.22×4＝ 3.25×0＝ 0.9－0.52＝ 3.99×1＝ 0×3.52＝ 12.5×8＝ 8÷10 = 10-1.8-7.2= 0.43+3.57= 2.5×4×12= 0.9×0.8= 7.5x-3x = a+3a+7a= 1.05×100= 1÷0.5= 0.96÷3= 1.47÷0.7= 5.4÷6= 0.16.5×10= 0.56×100= 3.78×100= 4÷0.8 = 3.215×100= 0.8×10= 4.08×100= 1.1×0.2 = 0.6×0.8 = 3×0.9= 2.5×0.4= 3.6×0.4= 12.5×8= 50×0.04= 80×0.3 = 1.1×9= 0.16×5 = 1.78＋2.2 = 9.6÷0.6 = 5.46＋4.54= 1.2×0.5-0.4 = 0.7÷0.01 = 12.5×0.8= 0.35×0.3= 1.4×5= 2.5×0.4 = 12－3.9= 1.25×8÷1.25 = 6.6÷0.66 = 2.8×4= 5.37×0+4.63 = 3.9＋2.03＝ 4.2÷ 3.5＝ 1.6+2.4×0.3 = 2.14－0.9＝ 27＋456＋73= 0.3×0.3= 7.2＋2.8＝ 0.9÷0.01＝ 12÷0.3= 2.87÷0.7＝ 13÷4＝ 0.96÷0.3＝ 1.5×0.4＝ 7÷0.25＝ 2.5×0.7×0.8= 8－2.5 ＝ 16÷1.6＝ 5.6×1.01= 8×（2.5＋0.25）＝ 0.36＋0.64＝ 64.32÷16＝ 4.2÷0.1＝ 72.8÷0.8＝ 8.4÷4.2＝ 13.8＋9.9＝ 2.4×2.5＝ 22.5×4= 0.05×0.8＝ 2.56－0.37＝ 1.25×0.8×0.5＝ 12×2.5＝ 5.5÷0.55= 1.23×3＝ 3.2÷ 1.6＝ 3.5＋3.5×3＝ 19.6÷2＝ 1.8×0.4= 8.8÷2.2= 0.75×4＝ （1.5＋0.25）×4＝ 0.5×0.8= 19.6÷4= 8.4×0.2= 1.6×0.2＝ 7.2×0.3= 2.8×0.3＝ 0.9÷0.15= 0.08×100= 2.2÷0.11= 2、用竖式计算 0.396÷1.2= 0.756÷0.36= 0.025×14= 15.6×13= 0.18×15= 3.06×36= 0.04×0.12＝ 3.84×2.6≈ 5.76×3＝ （保留一位小数） 3.25×9.04= （用除法验算） 7.15×22= 90.75÷3.3= 3.68×0.25 = 16.9÷0.13= 1.55÷3.9= 3.7×0.016 = 13.76×0.8= 5.2×0.6 = 8.4×1.3 = 6.4×0.5 = 4.48×0.4 = 5.25×5= 35.4×4.2= 0.042×0.54 = 0.76×0.32= 0.25×0.046= 2.52×3.4= 1.08×25= 0.12×0.5×0.16＝ （保留两位小数） 4.8×0.25＝ 0.125×1.4≈ ...
