第3单元 第5课时 蚕丝-【勤径小学升】2024-2025学年四年级下册数学同步口算（北师大版 ）

做对口道用时首 分钟 扫码批改秒核对错 第5课时 蚕丝(1) 速算 2.12×5= 2.03×0.6= 0.32×0.3= 9.12×5= 1.07×0.4= 0.24×8= 3.1×0.01= 1.02×0.8= 5.5×4= 5.7×0.3= 0.27×0.30= 5.4×9= 0.35×20= 2.9×0.5= 13.7×0.09= 0.45×90= 4×0.07= 4.2×300= 43.2×0.4= 4×0.02= 1.14×0.1= 0.23×20= 0.19×0.2= 1.31×0.9= 0.7×0.14= 3.7×20= 3.9×20= 1.15×20= 0.8×0.05= 0.17×0.9= 0.25×40= 4.07×30= 2.4×40= 4.7×0.05= 4.4×20= 5.11×40= 3.5×30= 11.3×0.2= 2.9×0.3= 2.72×10= 1.5×200= 0.72×40= 0.39×8= 3.75×0.3= 1.14×30= 3.5×0.07= 3.09×0.5= 45×0.07= 21 勤径小学升·同步口算 做对口道用时 分钟 扫码批改秒核对错 蚕丝(2) 速算 7×0.7= 2.9×7= 3.2×0.7= 2.74×5= 0.4×0.09= 3.6×10= 1.92×0.3= 3.02×5= 4.7×4= 1.9×0.7= 2.4×70= 1.7×70= 0.8×30= 1.4×20= 30×0.92= 2.4×60= 0.34×200= 0.43×400= 3.22×2= 4.4×5= 0.9×1.2= 0.24×0.7= 4.74×0.9= 0.04×9= 0.7×0.08= 3.4×0.06= 2.3×0.04= 0.07×2.8= 4.9×20= 1.7×40= 0.07×0.8= 23×0.2= 0.13×400= 2.9×80= 0.3×0.24= 0.3×0.11= 1.4×700= 0.19×200= 3×0.09= 0.4×0.22= 20.2×4= 0.07×0.2= 300×0.24= 40×2.5= 0.125×8= 0.44×0.7= 0.8×70= 0.045×500= 四年级·北师版·下册 31 做对门道用时口 分钟 扫码批改秒核对错 蚕丝(3)》 速算 0.4×1.3= 1.5×0.7= 1.3×0.3= 90×0.45= 9.5×0.2= 0.06×0.5= 1.2×7= 7×0.3= 0.7×0.7= 0.02×1000= 1.2×0.7= 0.4×0.52= 0.5×0.04= 0.2×0.7= 54×0.5= 0.5×0.9= 8.1×0.4= 0.9×0.03= 0.54×0.05= 0.3×0.25= 0.7×0.6= 5.1×0.2= 3.7×0.2= 4×0.75= 0.4×0.9= 0.7×0.92= 0.04×20= 6×0.85= 2.2×0.6= 1.5×0.9= 39×0.7= 4×0.94= 2.5×0.4= 5.4×3= 0.032×50= 0.9×0.2= 0.4×0.6= 4.2×0.8= 0.45×7= 0.38×0.01= 0.4×0.2= 0.04×1.4= 0.32×20= 45×0.3= 1.3×0.7= 0.01×10= 30×0.07= 4.75×0.2= 勤径小学升·同步口算四年级·北师版·下 速3.693.159.610 98038 0.270.088 算 0.05787.214.424.5 80.80.01472 100 1.260.2634.30.27 0.30856 22.5 0.0340.0510.5815 蚕丝(3) 0.368.120.77.4 速 0.521.050.3940.5 第5课时蚕丝(1)】 算 1.9 0.038.4 2.1 0.4920 0.840.208 速10.61.2180.09645.6 0.020.1427 0.45 算 0.4281.92 0.0310.816 3.240.0270.0270.075 221.71 0.08148.6 0.421.020.743 7 1.45 1.23340.5 0.360.6440.8 5.1 0.28126017.280.08 1.321.3527.33.76 0.1144.6 0.0381.179 1 16.21.6 0.18 0.09874 78 23 0.243.363.15 0.0038 0.040.15310 122.1 0.080.0566.4 13.5 96 0.23588 204.4 0.910.12.1 0.95 1052.260.87 27.2 第6课时手拉手(1) 300 28.83.12 1.125 速 1.295.40.3151.85 34.20.2451.5453.15 算 1.444.52.1 4.05 蚕丝(2) 0.630.720.74 0.04 速 4.920.32.2413.7 0.30.641.75 6.25 算 0.03636 0.57615.1 0.5124.50.72 10.45 18.81.33168 0.381.612 15.19 119 0.9831.534.37.37 24 28 27.6144 1.2 11.211 9.94 68 1726.4422 1.1774 98 1.83 1.080.1684.2660.36 0.9410.150.721.34 0.0560.2040.0920.196 0.920.1810.50.59 98 68 0.0564.6 14.77.40.721.71 52 232 0.0720.033 7…