第3单元 小数乘法-【练到位·口算一练通】2024-2025学年四年级数学下册（北师大版）

4年级下BS 批改&错题本 第2 1.直接写出得数。 1.3+0.7= 3.6+0.4= 2.1+4.36= 3.2-2.8= 5.6+3.9= 0.9+4= 0.8+7.94= 8.7-4.32= 7.48+1.26= 2.脱式计算。 18.6+4.73+2.35 9.75-4.3-1.7 用时：分秒错题： 单元计算达标检测 2.2+3.8= 4.5+5.5= 7-4.83= 2-0.53= 4.5+3.4= 2.3-1.65= 4.6-1.85= 5.6-3.9= 8.45-4.4= 3.75+1.25= 2.3+7= 0.9+4.6= 3.65-2.17= 5.43+2.36= 6.3+4.51= 3.28+4.5= 5.4+4.84= 9-4.87= 12.64+0.63+0.3745-23.8+15.73 4.28+1.38-1.28 48.7-3.45+2.75 道 20 综合检测评价：☆☆☆☆☆ 1.直接写出得数。 0.3×3= 8×0.2= 0.6×4= 0.7×2= 0.01×50= 0.7×5= 8×0.9= 4×0.3= 0.8×5= 2.用竖式计算。 4.83+1.76= 15.48-9.76= 用时：分秒 第3单元小数乘法 听算音频 练习一 买文具 0.5×4= 0.7×6= 4×0.2= 0.1×9= 6×0.4= 3×0.5= 0.8×2= 0.01×100= 0.6×7= 8×0.8= 0.9×7= 0.7×7= 6×0.3= 2×0.3= 5×0.5= 0.9×9= 0.7×8= 0.5×6= 8-7.45= 10.75+8.8= 14.8-3.72= 6.83+9.79= 错题： 道 综合检测评价：☆☆☆☆☆ 4年级下BS 批改&错题本 直接写出得数。 11.7÷100= 3.4×100= 4÷100= 3.2×10= 0.8×100= 0.4÷10= 2.3÷1000= 6.8×100= 120.75÷10= 0.96×100= 27.3×100= 0.09×10= 0.98÷10= 0.67÷10= 0.7÷10= 用时：二分 秒错 练习二 小数点搬家 0.5×10= 9÷100= 4.5÷10= 0.56×1000= 0.7÷100= 0.6÷10= 0.12×10= 0.05÷10= 5.6×100= 0.55×1000= 2÷10= 0.3×100= 1.02×1000= 11.02×10= 8.9÷10= 9.2÷100= 36.7÷10= 7.45×100= 12.5÷100= 85÷100= 4.4×100= 70.71÷10= 0.9÷100= 4.75×100= 0.52×100= 0.4÷10= 0.7×10= 0.3×100= 0.78×100= 0.4÷100= 题： 道 22 综合检测评价：☆☆☆☆☆ 1.直接写出得数。 0.62×5= 8.1×0.4= 3×2.5= 2.43×2= 6.9×3= 0.24×8= 0.6×1.4= 2.01×0.5= 9×1.05= 2.用竖式计算。 4.3×0.8= 1.56×2.4= 用时：分秒 第3单元小数乘法 听算音频 练习三 街心广场(1) 0.28×6= 2.43×3= 0.2×3.5= 1.14×6= 10.8×0.3= 7×0.64= 5.12×7= 7.1×8= 40×8.4= 0.66×4= 0.45×6= 1.2×0.7= 4.2×3= 1.3×0.6= 1.12×8= 2.9×2= 6.4×20= 0.8×15= 1.3×0.25= 1.44×0.98= 0.36×2.4= 14.8×5.2= 错题： 道 23 综合检测评价：☆☆☆☆☆ 4年级下BS ☒批改&错题本 练习四 街心广场(2) 1.直接写出得数。 3.5×0.4= 1.8×0.3= 10.5×6= 12.5×8= 2.2×0.4= 4.6×100= 0.9×1.6= 100×2.3= 0.7×8= 0.7×0.7= 3.5×0.1= 3.4×2= 1.4×0.3= 1.4×0.5= 1.1×0.1= 3.22×3= 2.4×0.5= 0.6×0.4= 3.2×4= 0.2×45= 7.6×0.8= 1.9×0.2= 3×4.5= 9×0.31= 54×0.3= 4.72×2= 1.5×0.3= 2.用竖式计算。 4.7×0.6= 2.8×6.9= 3.5×1.08= 0.48×3.6= 5.12×3.8= 6.47×2.9= 用时：分秒错题：道 24 综合检测评价：☆☆☆☆☆ 1.直接写出得数。 8.1×0.4= 0.6×1.4= 2.01×0.5= 35×0.8= 0.2×1.7= 0.12×0.03= 5.6×0.3= 0.05×0.4= 0.14×0.3= 1.63×0.2= 2.用竖式计算。 6.7×0.5= 58.9×0.078= 用时：分秒 第3单元小数乘法 听算音频 练习五 包装(1) 10.8×0.3= 1.2×0.7= 4.2×3= 1.3×0.6= 8×3.12= 3.6×0.3= 0.7×2.1= 1.08×4= 0.8×2.1= 1.03×0.4= 0.12×100= 2.23×0.2= 0.12×0.4= 0.12×10= 2×2.5= 0.12×0.5= 3.5×0.4= 0.12×0.06= 0.2×3.5= 0.42×0.7= 2.03×5.7= 0.76×0.5= 0.85×0.48= 0.128×4.3= 错题： 道 25 综合检测评价：☆☆☆☆☆ 4年级下BS (批改&错题本 练习六 包装(2) 1.直接写出得数。 0.2×3.5= 0.42×0.7= 4.03×8= 1.14×6= 3×2.5= 0.7×2.6= 2.3×0.2= 5.02×0.7= 1.5×80= 2.9×0.3= 0.4×8.4= 3.3×0.8= 7×1.5= 6.6×0.4= 1.02×0.7= 2.04×0.2= 2.6×50= 1.2×0.4= 0.56×0.4= 2.4×200= 0.56×0.01= 0.49×20= 0.8×1.5= 0.21×1.5= 0.35×0.8= 3.2×0.07= 1.12×0.4= 2.用竖式计算。 0.82×0.03= 4.25×0.11= 7.5×1.07= 3.15×6.3= 0.36×1.5= 2.48×7.5= 用时：分秒错题：道 26 综合检测评价：☆☆☆☆☆ 1.直接写出得数。 0.8×0.4= 0.4×0.9= 0.4×2.5= 1.4×0.4= 0.45×2= 0.5×1.8= 0.9×1.2= 1.6×0.5= 1.3×0.08= 2.用竖式计算。 1.76×0.98= 4.5×0.98= 用时：分秒 第3单元小数乘法 听算音频 练习七 蚕丝(1) 1.6×5= 1.03×5= 0.7×3.1= 0.5×1.4= 1.2×0.6= 0.7×1.1= 1.3×0.3= 0.6×2.2= 1.8×3= 0.6×0.25= 0.4×0.25= 2.5×0.4= 1.4×5= 1.2×0.5= 2×0.25= 0.23×0.4= 0.02×3.6= 7.2×40= 0.12×7.5= 3.18×4.2= 0.18×2.5= 0.42×0.18= 错题： 道 27 综合检测评价：☆☆☆☆☆ 4年级下BS (批改&错题本 练习八 蚕丝(2) 1.直接写出得数。 0.07×0.04= 2.3×0.05= 3.12×0.7= 7.01×0.08= 6.2×0.3= 400×0.14= 20.2×0.4= 0.09×0.2= 1.04×0.5= 3.2×0.9= 4.4×0.03= 1.6×0.3= 0.8×0.15= 0.02×0.34= 0.25×0.06= 90×1.5= 2.9×8= 2.15×0.6= 4.25×0.4= 0.04×0.2= 125×0.8= 0.6×0.4= 4.5×200= 4.5×40= 2.1×0.5= 3.06×0.2= 3.5×0.8= 2.用竖式计算。 0.28×0.45= 6.8×3.7= 75×0.6= 0.28×1.5= 0.89×2.5= 78×0.49= 用时：分秒错题：道 28 综合检测评价：☆☆☆☆☆ 第3单元小数乘法 听算音 练习九 手拉手(1) 1.直接写出得数。 42.2×3= 2.03×0.6= 0.2×3.16= 0.45×400= 0.08×1.02= 2.02×0.7= 0.29×0.3= 4.05×0.4= 2.03×8= 3.04×0.07= 1.06×0.03= 0.2×34= 2.5×0.06= 90×1.05= 0.23×6= 1.25×0.2= 2.5×0.6= 1.2×0.5= 1.4×5= 0.32×4= 1.5×0.3= 1.25×80= 4.2×20= 0.4×0.7= 0.5×2.5= 1.05×3= 0.8×0.7= 2.脱式计算，能简算的要简算。 10.6×0.35-9.6×0.35 12.5×9.6×0.8 10.7×16.1-15.1×10.7 15.5-1.28-3.72 用时：分秒错题：道 29 综合检测评价：☆☆☆☆☆4年级下BS参考答案 1.055.39.8 20.3231.320.3 16.17.51.461.577.055.71 7.765.0110.112.189.518.73 8.29.791.17 1.6513.0719.97 2.11.770.5421.5525.2616.055.65 2.6440.3211.71 3.8.97 0.757.991.571.259.25 第2单元认识三角形和四边形 练习一图形分类 1.9.10.58.10.822.310.9 3.35.37.771.70.0810.32 11.919.31.512.4819.33.72 5.980.72.7 3.50.953.7 7.031.516.33 2.18.7311.9522.35.6811.62 14.34 练习二三角形分类 1.1.95.51.2 20.519.53.3 5.718.81.2 4.34.28.67 14.81.32.7 0.729.138.1 6.84.124.4 6.30.5525.5 9.57.481 2.5.9112.827.56 9.6912.0661.2 练习三探索与发现：三角形内角和 1.0.77.66.311.14.510 5.37.115.9102.710.05 9.52.32.21.53.0310.07 11.820.51.04 4.257.67.75 1.57.814.07 2.23.985.817.15 19.639.0212.71 练习四探索与发现：三角形边的关系 1.2.70.024.5 8.8713.21.8 3.75.61.88 1.120.31.3 3.67.122.7 9.36.841 9.590.5540 3.2826.5529.8 2.9975.64.59 2.16.1734.123.43 26.32514.5 练习五四边形分类 1.6.312.25106.47.3 1.652.766.18.53.511.2 0.80.72.6 0.23.313.74 13.611.463.952.984.921.55 6.210.122.86 2.1113.2512.76 5.512.3911.39 练习六练习课 1.4.952.21.828.27.510 102010.079.953.33.19 11.63.90.58.587.42.3 4.146.5210.3123.074.08 4.6711.057.53 2.12.946.0526.39 3.979.699.79 第2单元计算达标检测 1.261042.171.47 6.467.90.650.42.751.7 9.54.0554.99.35.5 8.741.487.794.3810.817.78 8.7410.244.13 2.25.6813.6436.93 3.754.3848 第3单元小数乘法 练习一买文具 1.0.924.21.60.80.9 2.42.41.51.41.61 0.54.26.4 3.56.34.9 7.21.80.6 1.22.58.1 45.63 2.6.590.5519.555.7211.0816.62 练习二小数点搬家 0.11750.093400.45560 0.040.0070.06321.20.005 805605500.040.230 0.00231020110.26800.890.092 12.0753.67745960.1250.85 27304407.0710.90.009475 0.098520.04 0.067730 0.07780.004 练习三街心广场(1)】 1.3.11.687.29 3.240.76.84 7.53.244.48 4.8635.8456.8 20.73362.641.922.70.84 0.8412.60.78 1.0058.965.8 9.4512812 72 2.3.440.3251.41123.7440.86476.96 练习四街心广场(2) 1.1.40.5463 1000.88460 1.442305.6 0.490.356.8 0.420.70.119.661.20.24 12.896.080.3813.52.79 16.29.440.45 2.2.8219.323.78 1.72819.456 18.763 练习五包装(1)】 1.3.243.240.840.8412.60.78 1.00524.961.08281.474.32 0.341.680.412 0.0036120.446 1.680.048 1.2 0.0250.06 0.0421.40.0072 0.3260.70.294 2.3.3511.5710.38 4.59420.4080.5504 练习六包装(2) 1.0.70.29432.24 6.847.51.82 0.463.514120 0.873.362.64 10.52.640.714 0.4081300.48 0.2244800.0056 9.81.20.315 0.280.2240.448 2.0.02460.46758.025 19.8450.5418.6 练习七蚕丝(1) 1.0.3285.15 0.362.170.7 10.720.77 0.560.391.32 0.95.40.15 0.90.11 1.0870.6 0.80.50.092 0.1040.072288 2.1.72480.913.356 4.410.450.0756 练习八蚕丝(2) 1.0.00280.1152.184 0.56081.8656 8.080.0180.52 2.880.1320.48 0.120.00680.01513523.21.29 1.70.008100 0.24900180 1.050.6122.8 2.0.12625.1645 0.422.22538.22 练习九手拉手(1) 1.126.61.2180.632 1800.08161.414 0.0871.6216.24 0.21280.03186.8 0.1594.51.38 0.251.50.6 71.280.45100840.28 1.253.150.56 2.0.359610.710.5 练习十手拉手(2) 1.1.280.45100840.0720.72 3.151.252.084.21.320.12 0.761.621.2 40811.04 0.30.028488.710.12210 9.721.351.68 2.8105626.514 练习十一练习课 1.0.00480.10828.80.2167.329.72 162.42.380.3180.192.080.39 0.5414.357512.90.2350.64 0.0480.2161.251.6080.0720.238 2083.313.89 2.0.10050.71755629.85321.6962.2176 练习十二整理与复习 1.2.64.50.720.0060.753.85 0.0450.960.89727.2 1.640.0081.5100.990.093 630.4840.0856.151.293.7 1.084.321.206 2.0.724563.8751.836 4.98288.5153.0784 第3单元计算达标检测 1.0.070.81.051.40.840.08 0.4260.120.7860300.0645 0.6400.265100.481.54 200.157400.991062.5 0.2247.60.941.089.420.84 0.9211.42.94.70.2660.96 0.0762.824.052.75.850.114 0.981.120.8412832.9 2.2.4815.733.4651.4044.7970.5632 803.6711.2063.3435 3.100438.323.94 期中计算达标检测 1.11.1220.45.7235 7.410000.928.4250.6 0.1850.230.780.520.2520 3