小学五年级上册数学计算题题库.doc

第一单元：小数数乘法 口算 3.5×3= 0.72×5 0.7×4= 2.5×6= 2.05×4= 12.4×7= 1.2×0.8= 0.8×0.9= 计算 6.7×0.3= 2.4×6.2= 0.56×0.04= 2.3×12= 56×1.3= 3.2×2.5= 2.6×1.08= 0.86×7= 3.5×16= 12.5×42= 32?.5= 70.5?.4= 1.8?3= 0.37?.4= 1.06?5= 7?.86= 0.6?.39= 27?.43= 2.4?.5= 1.2?.35= 4.25?.1= 0.049?5= 1.7?.45= 1.2?.4= 0.37?.4= 0.86?.2= 2.34?.15= 1.9?4= 16?4.5= 6.5?.9= 综合算式 72×0.81＋10.4 7.06×2.4－5.7 0.25×4.78×4 0.65×201 0.034×0.5×0.6 102×0.45 4.8×0.25 2.33×0.5×4 1.5×105 1.2×2.5＋0.8×2.5 50.4×1.9－1.8 3.76×0.25＋25.8 第二单元：小数除法 口算 5.6÷7= 4.08÷8= 0.54÷6= 14.21÷7= 42÷3= 4.2÷3= 91÷14= 41.2÷4= 计算 22.4÷4= 25.2÷6= 34.5÷15= 1.8÷12= 7.83÷9= 6.3÷14= 72÷15= 22.4÷4= 24÷15= 1.26÷18= 43.5÷29= 18.9?7= 1.35?5= 28.6?1= 20.4?4= 3.64?2= 15.6?2= 328?6= 1.35?7= 7.65?.85= 12.6?.28= 62.4?.6= 0.544?.16= 1.44?.8= 11.7?.6= 5.98?.23= 19.76?.2= 10.8?.5= 21?.4= 8.84?.7= 6.21?.03= 1.8?.24= 13.5?.3= 455?.5= 27.3?.3= 220.5?1= 2.5?.4= 1.89?.54= 7.1?.5= 0.51?.22= 27.5?.5= 26.46?.49= 求近似值 48÷2.3 1.55÷3.8 7.09÷0.52 3.81÷7 246.4÷13 5.63÷6.1 400÷75 28÷18 78.6÷11 19.4÷12 40÷14 26.37÷31 45.5÷38 15÷16 1.5÷7 6.509÷0.27 9.4÷6 38.2÷2.7 12.4÷11 3.7÷2.2 25÷1.5 1.3÷0.03 7÷11 0.68÷0.95 综合算式 0.75×18÷0.15 2.07÷0.23÷0.45 21.36÷0.8－12.9 7.28＋3.2÷2.5 1.08×0.8÷0.27 2.05÷0.82＋33.6 44.28÷0.9÷4.1