第二单元 专项训练06：小数乘法（口算专练）人教版五年级数学上册（新教材）

**基本信息** 聚焦小数乘法口算能力，通过梯度化题型训练巩固计算法则，培养运算能力与数感。 **专项设计** |模块|题量/典例|题型特征|知识逻辑| |----|-----------|----------|----------| |基础口算|1-4题（如0.25×0.4）|一位/两位小数乘小数|从整数乘法迁移，强化小数点定位| |进阶口算|5-9题（如1.35×100）|含整十/百数、多位小数|结合计数单位转化，深化运算规律|

可学科网 www zxxk.com 让教与学更高效 新教材·人教版五年级数学上册第二单元：小数乘法 专项训练06：小数乘法（口算专练) 1.口算。 0.12×0.3= 0.8×0.15= 0.25×0.4= 1.2×0.06= 0.08×0.5= 0.36×0.2= 0.7×0.12= 0.04×1.5= 0.45×0.3= 0.09×1.1= 0.18×0.5= 1.5×0.08= 0.06×0.12= 0.3×0.22= 0.24×0.3= 0.5×0.18= 0.14×0.6= 0.09×1.2= 1.1×0.07= 0.32×0.2= 0.2×0.35= 0.16×0.4= 0.05×1.8= 0.75×0.2= 1.3×0.04= 0.03×0.21= 0.48×0.1= 1128 西学科网 www zxxk.com 让教与学更高效 0.6×0.14= 0.15×0.6= 0.07×0.13= 0.22×0.3= 1.4×0.05= 0.35×0.2= 0.04×0.25= 0.8×0.12= 0.11×0.9= 0.06×1.1= 0.28×0.3= 0.55×0.2= 0.08×1.3= 【答案】0.036；0.12；0.1；0.072： 0.04:0.072:0.084:0.06: 0.135；0.099:0.09:0.12; 0.0072:0.066:0.072:0.09: 0.084:0.108:0.077:0.064: 0.07:0.064:0.09:0.15: 0.052:0.0063:0.048:0.084: 0.09:0.0091:0.066:0.07: 0.07;0.01;0.096;0.099; 2128 可学科网 www zxxk.com 让教与学更高效 0.066:0.084:0.11:0.104 2.口算。 0.2×6= 0.15×4= 0.125×8= 0.3×0.2= 0.12×0.05= 0.5×8= 0.25×3 0.05×6= 0.4×0.15= 0.24×0.1= 0.3×9= 0.45×2= 0.11×5= 0.6×0.3= 0.7×5 0.35×2= 0.08×4= 0.2×0.45= 0.4×7 0.16×5= 0.102×3= 0.5×0.01= 0.6×4= 0.24×2= 0.06×8= 0.8×0.12= 0.14×0.2 3128 西学科网 www zxxk.com 让教与学更高效 0.8×3= 0.32×3= 0.3×0.31= 0.9×2 0.42×2= 0.04×9= 0.7×0.11= 0.2×9 0.18×5= 0.18×4= 0.4×0.21= 0.25×0.02 0.27×0.3= 0.5×6= 0.28×2= 0.09×3= 0.6×0.13= 【答案】1.2；0.6；1；0.06； 0.006;4:0.75;0.3: 0.06;0.024;2.7;0.9； 0.55:0.18:3.5;0.7: 0.32:0.09；2.8:0.8: 0.306:0.005:2.4:0.48: 0.48;0.096:0.028;2.4: 4128 可学科网 www zxxk.com 让教与学更高效 0.96:0.093:1.8；0.84 0.36:0.077；1.8:0.9: 0.72:0.084:0.005；0.081: 3:0.56:0.27:0.078 3.口算。 0.3×8= 0.19×4= 0.17×2= 0.5×0.31= 0.22×0.01= 0.7×3= 0.29×2 = 0.05×8= 0.8×0.14= 0.18×0.05= 0.4×6 = 0.31×3= 0.109×1000= 0.3×0.22= 0.25×200 0.6×2= 0.13×5= 0.06×5= 0.7×0.31= 0.16×30= 0.8×7= 0.21×4= 5128 函学科网 www zxxk.com 让教与学更高效 0.11×50= 0.4×0.11= 0.23×20= 0.9×5= 0.33×2 0.04×7= 0.6×40= 0.19×100= 0.2×4 0.41×2= 0.15×6= 0.2×0.13= 0.26×20 0.9×400= 0.12×90= 40×0.5= 0.64×0.01 45×0.3= 【答案】2.4；0.76：0.34：0.155； 0.0022;2.1;0.58:0.4; 0.112:0.009:2.4:0.93; 109;0.066:50:1.2: 0.65:0.3;0.217:4.8； 5.6:0.84:5.5:0.044: 4.6;4.5;0.66;0.28: 6128 可学科网 www zxxk.com 让教与学更高效 24:190.8;082: 0.9:0.026:5.2:360: 10.8:20:0.0064:13.5 4.口算。 0.2×0.6= 0.4×0.2= 1.2×0.3= 1.5×0.2= 0.02×0.3= 0.4×0.9= 0.6×1.3= 1.5×0.1= 0.5×0.8= 0.7×0.3= 1.4×0.2= 0.8×1.1= 0.6×0.6= 0.9×1.3= 0.5×1.6= 0.7×1.2= 1.5×1= 0.3×1.3= 1.4×0.4= 0.3×0.8= 0.9×1.1= 0.7×0.7= 0.3×1.5= 0.2×1.1= 7128 可学科网 www zxxk.com 让教与学更高效 1.5×0.4= 0.8×1.2= 1.3×0.6= 1.5×0.7= 0.6×1.1= 1.4×0.5= 0.01×1.1= 1.5×0.6= 1.2×0.4= 0.5×0.6= 1.3×0.8= 1.5×0.9= 0.7×1.4= 0.9×1.2= 0.6×1.6= 1.3×0.1= 【答案】0.12；0.08；0.36；0.3： 0.006;0.36:0.78；0.15: 0.4;0.21;0.28;0.88； 0.36:1.17；0.8；0.84: 1.5:0.39:0.56;0.24: 0.99:0.49；0.45:0.22; 0.6:0.96:0.78;1.05 0.66:0.7:0.011；0.9； 8128 可学科网 www zxxk.com 让教与学更高效 0.48:0.3:1.04:1.35； 0.98:1.08:0.96:0.13 5.口算。 1.2×6= 4.4×2= 3.9×10 = 1.35×100= 0.2×30= 2.4×30= 0.25×10= 0.55×1000= 0.5×7= 0.8×5= 1.2×80 = 1.3×6= 0.18×20= 0.64×3= 2.5×80 0.3×30= 1.5×800= 0.4×90= 1.9×200= 6.3×20= 0.4×7= 5.5×10= 8.8×2 7.5×200= 8.2×100= 9×1.1= 30×4.2= 9128 可学科网 www zxxk.com 让教与学更高效 6.5×100= 0.9×3= 9.7×100= 9.6×1= 1.93×10= 13×0.3= 7.4×100= 2.9×3= 5.5×100= 0.9×90= 0.45×30= 0.6×1000= 8.3×200= 【答案】7.2；88；39；135； 6:72:2.5:550: 3.5；4；96；7.8； 3.6:1.92;200;9: 1200:36:380:126: 2.8:55:17.6:1500: 820:9.9:126:650: 2.7:970:9.6；19.3: 3.9:740;8.7;550: 10/28 可学科网 www zxxk.com 让教与学更高效 81:13.5:600:1660 6.口算。 0.3×5= 0.36×2= 0.101×6 0.2×0.32= 0.7×8= 0.14×3= 0.07×5 0.5×0.14= 0.19×0.02= 0.4×9= 0.22×4 0.104×2= 0.8×0.2= 0.26×0.3= 0.6×7 0.34×2= 0.03×8= 0.3×0.41= 0.17×0.2 0.8×5= 0.44×2= 0.16×3= 0.7×0.12 = 0.28×100= 0.9×4= 0.12×6= 0.02×7 11/28 可学科网 www zxxk.com 让教与学更高效 0.4×0.32= 0.11×2= 0.2×5= 0.26×3 0.1×5= 0.6×20= 0.24×20= 0.5×9 0.38×2= 0.08×6= 0.2×0.41= 0.15×100= 0.03×130= 【答案】1.5；0.72；0.606；0.064： 5.6:0.42:0.35:0.07: 0.0038:3.6:0.88:0.208: 0.16;0.078;4.2;0.68； 0.24:0.123；0.034:4: 0.88:0.48:0.084:28: 3.6:0.72:0.14:0.128； 0.22;1;0.78;0.5; 124.8;4.5;0.76 12/28 可学科网 www zxxk.com 让教与学更高效 0.48;0.082:15;3.9 7.口算。 1.2×3= 1.4×2= 2.2×3= 5.1×4= 2.4×2= 9.5×5= 8.8×3= 7.6×4= 11.2×3= 7.85×7= 9.2×23= 5×4.3= 12×3.7= 3.3×2= 22.2×8= 10.5×9= 21.2×6= 65.4×2= 1.6×3= 35.1×4= 82.2×9= 12.4×2= 26.2×7= 26.1×14= 71.2×7= 31.4×2= 52.2×13= 13/28 可学科网 www zxxk.com 让教与学更高效 75.3×6= 16.35×3= 15.4×27= 28.3×5= 7.4×4= 3.9×3= 11.4×63= 1.6×2= 1.5×9= 3.7×3= 41.4×8= 9.3×3= 15.1×7= 【答案】3.6；2.8；6.6：20.4： 4.8:47.5:26.4:30.4: 33.6:54.95:211.6:21.5: 44.4;6.6:177.6;94.5； 127.2；130.8:4.8:140.4: 739.8:24.8:183.4:365.4: 498.4:62.8:678.6:451.8: 49.05:415.8:141.5:29.6: 11.7;718.2;3.213.5: 14/28 可学科网 www zxxk.com 让教与学更高效 11.1:331.2;27.9;105.7 8.口算。 16.3×0.3= 33.3×0.3= 1.9×0.2= 4.2×1.6= 1.2×4.5= 0.7×1.8= 1.8×0.6= 1.3×1.7= 32.8×0.1= 9.1×0.8= 2.4×1.2= 6.5×1.1= 12.1×0.8= 0.5×3.7= 1.7×0.8= 4.4×0.9= 8.8×0.3= 0.9×1.3= 1.4×0.9= 3.62×1.5= 20.8×0.2= 4.15×0.3= 31.9×0.2= 1.2×1.6= 2.3×1.3= 43.3×0.5= 17.1×0.2= 4.2×0.6= 3.5×0.3= 5.7×0.4= 6.8×0.2= 8.3×0.5= 12.3×0.3= 23.7×0.2= 11.9×0.2= 5.2×0.7= 6.3×0.3= 5.43×0.4= 7.9×0.2= 1.9×0.8= 【答案】4.89；9.99；0.38；6.72 5.4;1.26;1.08；2.21 3.28:7.28；2.88；7.15: 9.68:1.85:1.36:3.96: 15/28 可学科网 www zxxk.com 让教与学更高效 2.64:1.17:1.26;5.43: 4.16:1.245:6.38；1.92: 2.99:21.65:3.42；2.52; 1.05:2.28；1.36:4.15； 3.69:4.74:2.38:3.64: 1.89:2.172；1.58:1.52 9.直接写出得数。 0.4×2= 2×0.5= 0.3×7= 0.9x3= 7×0.5= 8×0.6= 0.7×4= 5×0.4= 【答案】0.8；1；2.1；2.7： 3.5:4.8:2.8:2 10.算一算。 0.9×0.3= 1.5×0.4= 0.5×3.3= 3.3×0.7= 0.2×0.5= 1.8×0.5= 7.5x1.9= 0.7×1.3= 2.5×0.4= 16/28 可学科网 www zxxk.com 让教与学更高效 2.4×0.2= 0.4×3.6= 2.2×0.7= 0.8×1.1= 3.4×0.9= 1.4×0.5= 2.12×0.7= 3.6×4.8= 3.06×0.4= 6.3×0.9= 0.25×0.8= 9.8×1.2= 33.4×3.5= 4.67×2.8= 1.7×13.5= 12.5×0.8= 1.99×0.6= 5.6×7.24= 6.8×6.72= 0.8×0.125= 4.72×3.4= 0.2×0.32= 4.39×10= 0.8×0.15= 【答案】0.27；0.6：1.65： 2.31；0.1;0.9: 14.25:0.91;1; 0.48:1.44:1.54: 0.88:3.06:0.7: 1.484:17.28:1.224: 5.67:0.2:11.76: 116.9:13.076:22.95: 10:1.194;40.544: 17/28 可学科网 www zxxk.com 让教与学更高效 45.696:0.1；16.048: 0.064:43.9；0.12 11.算一算。 0.1×5= 1.6×1= 1.5×2= 0.24×3= 25×0.01= 0.8×25= 1.6×5= 0.2×4= 2.2×5= 2.5×4= 2.7×8= 0.5×8= 1.5×8= 5.2×2= 4.5×5= 2.3×5= 1.8×5= 3.9×10= 3.5×4= 0.25×4= 0.7×9= 1.25×8= 1.11×9= 12.5×8= 0.4×20= 12.7×20= 33.6×2= 4.32×30= 13×0.2= 12.7×100= 0.15×4= 18×0.4= 0.05×22= 【答案】0.5；1.6；3： 0.72；0.25；20 8；0.8:11; 10:21.6:4: 12:10.4:22.5: 11.5；9；39； 14:1:6.3: 18/28 可学科网 www zxxk.com 让教与学更高效 10:9.99:100; 8;254:67.2: 129.6:2.6:1270 0.6:7.2；1.1 12.算一算。 0.8×0.5= 2.4×0.4= 12.5×0.4= 2.2×10.1= 1.4×0.4= 3.2×0.5= 4.4×0.5= 0.22×101= 8.2×0.5= 25×0.04= 0.125×0.8= 1.01×4.5= 7.6×0.5= 2.1×0.7= 0.24×0.5= 2.5×0.8= 12.5×16= 0.125×1.6= 1.01×0.45= 100.1×3.3= 1.05×8.7= 9.8×0.3= 2.9×0.58= 6.59×0.3= 4.4×10= 0.65×1.6= 2.75×1.2= 2.58×2.9= 0.71×2.3= 0.65×1.69= 【答案】0.4：0.96：5： 19/28 可学科网 www zxxk.com 让教与学更高效 22.22;0.56:1.6: 2.2；22.22;4.1: 1；0.1；4.545: 3.8:1.47:0.12: 2;200:0.2; 0.4545:330.33:9.135: 2.94:1.682；1.977; 44:1.04:3.3: 7.482:1.633:1.0985 13.直接写出得数。 0.4×6= 0.5×1= 0.7×8= 0.3×3= 5×0.8= 7×0.6= 3×0.9= 16×0.01= 【答案】2.4：0.5；5.6：0.9 4;4.2;2.7;0.16 14.算一算。 20/28 可学科网 www.zxxk.com 让教与学更高效 0.6×9= 2.9×5= 2.3×4= 0.4×8= 0.2×5= 1.5×2= 11×0.5= 1.6×0.2= 0.5×3.6= 0.1×23= 0.4×0.8= 1.7×0.8= 0.4×1.5= 2.5×0.4= 0.7×0.7= 3.8×0.5= 0.6×4.5= 2.4×0.5 1.4×0.5= 1.1×0.1= 0.7×2.7= 1.8×0.4= 0.4×0.9= 1.2×1.1= 0.7×0.3= 22.4×4= 0.25×0.8= 0.7×100= 1.25×0.8= 12.3×0.7= 【答案】5.4；14.5；9.2； 3.2:1；3: 5.5:0.321.8: 2.3:0.32:1.36 0.6:1:0.49: 1.9；2.7；1.2； 0.7；0.11;1.89: 21/28 可学科网 www zxxk.com 让教与学更高效 0.72:0.36;1.32 0.21:89.60.2: 701；8.61 15.算一算。 0.1×0.2= 0.6×0.7= 0.4×0.7= 1.1×0.4= 0.2×0.3= 0.7×0.9= 0.6×0.4= 2.2×0.6= 0.3×0.4= 0.8×0.9= 0.6×0.8= 3.3×0.7= 0.4×0.5= 0.9×10= 0.9×0.6= 4.4×0.8= 0.5×0.6= 10×0.1= 0.1×0.5= 5.5×0.9= 0.7×0.8= 12.5×0.8= 0.9×1.8= 1.6×2.5= 0.5×0.7= 0.9×0.5= 0.9×1.2= 10.1×7.8= 6.5×2.3= 2.5×1.04= 【答案】0.02；0.42；0.28： 0.44:0.06:0.63： 22/28 可学科网 www zxxk.com 让教与学更高效 0.24:1.32；0.12 0.72:0.48:2.31: 0.2:9；0.54: 3.52:0.3:1: 0.05:4.95:0.56 10:1.62；4: 0.35:0.45；1.08: 78.78:14.95:2.6 16.算一算。 0.8×0.2= 4.5×0.4= 1.5×0.3= 5.3×0.5= 1.2×0.5= 4.8×0.5= 25×0.04= 2.3×0.9= 2.8×0.4= 4.7×9.5= 0.5×3.5= 2.01×0.6= 1.5×0.4= 3.04×0.9= 3.6×0.6= 3.33×0.2= 5.1×8.7= 0.05×1.8= 9.8×8.7= 1.05×0.6= 0.26×4.8= 0.55×1.8= 1.25×0.8= 0.76×3.2= 23/28 可学科网 www zxxk.com 让教与学更高效 0.24×0.5= 1.2×12.1= 3.1×16.2= 0.24×0.6= 6.07×0.8= 4.84×1.1= 【答案】0.16；1.8：0.45： 2.65；0.6;2.4: 1；2.07;1.12: 44.65:1.75:1.206: 0.6:2.736:2.16: 0.666:44.37:0.09; 85.26:0.63:1.248: 0.99；1；2.432: 0.12:14.52;50.22; 0.144:4.856:5.324: 17.算一算。 0.8×7= 1.2×6= 2.4×5= 3.6×4= 7.5×3= 9.2×70= 3.7×0.3= 2.2×0.8= 25×0.4= 24/28 可学科网 www zxxk.com 让教与学更高效 2.18×0.5= 0.29×40= 2.9×0.2= 5.1×0.07= 2.6×0.8= 12.5×80= 5.2×0.01= 7.9×0.9= 0.4×0.6= 12.5×8= 0.6×1.7= 1.03×0.5= 90×0.5= 7.5×0.3= 13.6×0.4= 101×7.7= 0.4×0.25= 0.5×0.04= 0.124×300= 4.82×0.6= 3.03×200= 【答案】5.6：7.2；12： 14.4:22.5:644: 1.11；1.76；10: 1.09:11.6:0.58； 0.357:2.08:1000: 0.052:7.11:0.24; 100:1.02:0.515: 45:2.25:5.44: 777.7:0.1；0.02 37.2;2.892;606 25/28 西学科网 www.zxxk.com 让教与学更高效 18.算一算。 0.5×0.5= 2.4×0.1= 0.2×7.5= 8.5×0.6= 1.2×0.4= 4.1×0.4= 1.6×0.5= 2.4×0.7= 8.4×0.5= 6.5×0.3= 0.3×3.7= 3.3×4.3= 8.6×0.9= 7.2×7.8= 2.4×0.5= 4.06×0.5= 4.4×4.3= 0.39×0.2= 7.3×4.6= 0.7×30.4= 12.5×8.7= 0.45×0.3= 0.25×0.2= 0.23×0.5= 0.75×7.5= 0.04×1.3= 0.4×12.5= 3.03×0.6= 3.81×0.72= 0.65×1.69= 0.8×1.01= 0.45×0.2= 0.35×0.6= 【答案】0.25；0.24；1.5； 5.1:0.48:1.64: 0.8；1.68:4.2: 1.95:1.11；14.19: 26/28 可学科网 www zxxk.com 让教与学更高效 7.74:56.16:1.2: 2.03:18.92:0.078 33.58:21.28；108.75; 0.135:0.05:0.115: 5.625:0.052;5: 1.818:2.7432;1.0985: 0.808:0.09:0.21 19.算一算。 0.9×0.9= 2.4×0.4= 0.3×2.5= 5.5×0.4= 1.1×0.7= 2.4×0.5= 4.8×0.3= 2.5×0.8= 4.5×0.8= 1.8×1.3= 3.7×0.2= 0.5×3.8= 0.8×12.5= 2.33×0.6= 3.14×0.7= 0.8×0.55= 0.02×1.9= 4.02×0.5= 3.03×0.5= 1.15×0.7= 2.99×0.2= 0.19×3.3= 0.15×0.6= 4.7×0.23= 0.33×0.3= 0.81×0.2= 7.6×0.01= 27/28 可学科网 www zxxk.com 让教与学更高效 0.25×0.4= 15.1×0.6= 0.71×0.54= 【答案】0.81；0.96；0.75： 2.2；0.77:1.2: 1.44;2;3.6: 2.34:0.74:1.9； 10:1.398:2.198: 0.44:0.038；2.01: 1.515:0.805:0.598: 0.627:0.09:1.081: 0.099；0.162:0.076: 0.1;9.06:0.3834 28/28可学科网 www zxxk.com 让教与学更高效 新教材·人教版五年级数学上册第二单元：小数乘法 专项训练06：小数乘法（口算专练) 1.口算。 0.12×0.3= 0.8×0.15= 0.25×0.4= 1.2×0.06= 0.08×0.5= 0.36×0.2= 0.7×0.12= 0.04×1.5= 0.45×0.3= 0.09×1.1= 0.18×0.5= 1.5×0.08= 0.06×0.12= 0.3×0.22= 0.24×0.3= 0.5×0.18= 0.14×0.6= 0.09×1.2= 1.1×0.07= 0.32×0.2= 0.2×0.35= 0.16×0.4= 0.05×1.8= 0.75×0.2= 1.3×0.04= 0.03×0.21= 0.48×0.1= 1117 西学科网 www zxxk.com 让教与学更高效 0.6×0.14= 0.15×0.6= 0.07×0.13= 0.22×0.3= 1.4×0.05= 0.35×0.2= 0.04×0.25= 0.8×0.12= 0.11×0.9= 0.06×1.1= 0.28×0.3= 0.55×0.2= 0.08×1.3= 2.口算。 0.2×6= 0.15×4= 0.125×8= 0.3×0.2= 0.12×0.05= 0.5×8= 0.25×3 0.05×6= 0.4×0.15= 0.24×0.1= 0.3×9= 0.45×2= 0.11×5= 0.6×0.3= 0.7×5 2117 西学科网 www zxxk.com 让教与学更高效 0.35×2= 0.08×4= 0.2×0.45= 0.4×7 = 0.16×5= 0.102×3 0.5×0.01= 0.6×4 0.24×2= 0.06×8= 0.8×0.12= 0.14×0.2 0.8×3= 0.32×3= 0.3×0.31= 0.9×2 = 0.42×2= 0.04×9= 0.7×0.11= 0.2×9 0.18×5= 0.18×4= 0.4×0.21= 0.25×0.02 0.27×0.3= 0.5×6= 0.28×2= 0.09×3= 0.6×0.13= 3117 可学科网 www zxxk.com 让教与学更高效 3.口算。 0.3×8= 0.19×4= 0.17×2= 0.5×0.31= 0.22×0.01= 0.7×3= 0.29×2 0.05×8= 0.8×0.14= 0.18×0.05= 0.4×6 0.31×3= 0.109×1000= 0.3×0.22= 0.25×200 = 0.6×2= 0.13×5= 0.06×5= 0.7×0.31= 0.16×30= 0.8×7= 0.21×4= 0.11×50= 0.4×0.11= 0.23×20= 0.9×5= 0.33×2 0.04×7= 0.6×40= 0.19×100 0.2×4 4117 可学科网 www zxxk.com 让教与学更高效 0.41×2= 0.15×6= 0.2×0.13= 0.26×20 0.9×400= 0.12×90= 40×0.5= 0.64×0.01 45×0.3= 4.口算。 0.2×0.6= 0.4×0.2= 1.2×0.3= 1.5×0.2= 0.02×0.3= 0.4×0.9= 0.6×1.3= 1.5×0.1= 0.5×0.8= 0.7×0.3= 1.4×0.2= 0.8×1.1= 0.6×0.6 0.9×1.3= 0.5×1.6= 0.7×1.2= 1.5×1= 0.3×1.3= 1.4×0.4= 5117 西学科网 www zxxk.com 让教与学更高效 0.3×0.8= 0.9×1.1= 0.7×0.7= 0.3×1.5= 0.2×1.1= 1.5×0.4= 0.8×1.2 1.3×0.6= 1.5×0.7= 0.6×1.1= 1.4×0.5= 0.01×1.1= 1.5×0.6= 1.2×0.4= 0.5×0.6= 1.3×0.8= 1.5×0.9= 0.7×1.4= 0.9×1.2= 0.6×1.6= 1.3×0.1= 5.口算。 1.2×6= 4.4×2= 3.9×10 = 1.35×100= 0.2×30= 2.4×30= 0.25×10= 6117 西学科网 www zxxk.com 让教与学更高效 0.55×1000= 0.5×7= 0.8×5= 1.2×80 1.3×6= 0.18×20= 0.64×3= 2.5×80 0.3×30= 1.5×800= 0.4×90= 1.9×200= 6.3×20= 0.4×7= 5.5×10= 8.8×2 = 7.5×200= 8.2×100= 9×1.1= 30×4.2= 6.5×100= 0.9×3= 9.7×100= 9.6×1= 1.93×10= 13×0.3= 7.4×100= 2.9×3 5.5×100= 0.9×90= 0.45×30= 0.6×1000= 7117 函学科网 www zxxk.com 让教与学更高效 8.3×200= 6.口算。 0.3×5= 0.36×2= 0.101×6 0.2×0.32= 0.7×8= 0.14×3= 0.07×5 0.5×0.14= 0.19×0.02= 0.4×9= 0.22×4 0.104×2= 0.8×0.2= 0.26×0.3= 0.6×7 0.34×2= 0.03×8= 0.3×0.41= 0.17×0.2 0.8×5= 0.44×2= 0.16×3= 0.7×0.12 = 0.28×100= 0.9×4= 0.12×6= 0.02×7 8117 西学科网 www zxxk.com 让教与学更高效 0.4×0.32= 0.11×2= 0.2×5= 0.26×3 0.1×5= 0.6×20= 0.24×20= 0.5×9 0.38×2= 0.08×6= 0.2×0.41= 0.15×100= 0.03×130= 7.口算。 1.2×3= 1.4×2= 2.2×3= 5.1×4= 2.4×2= 9.5×5= 8.8×3= 7.6×4= 11.2×3= 7.85×7= 9.2×23= 5×4.3= 12×3.7= 3.3×2= 22.2×8= 9117 西学科网 www zxxk.com 让教与学更高效 10.5×9= 21.2×6= 65.4×2= 1.6×3= 35.1×4= 82.2×9= 12.4×2= 26.2×7= 26.1×14= 71.2×7= 31.4×2= 52.2×13= 75.3×6= 16.35×3= 15.4×27= 28.3×5= 7.4×4= 3.9×3 11.4×63= 1.6×2= 1.5×9= 3.7×3= 41.4×8= 9.3×3= 15.1×7= 8.口算。 16.3×0.3= 33.3×0.3= 1.9×0.2= 4.2×1.6= 1.2×4.5= 0.7×1.8= 1.8×0.6= 1.3×1.7= 10/17 可学科网 www zxxk.com 让教与学更高效 32.8×0.1= 9.1×0.8= 2.4×1.2= 6.5×1.1= 12.1×0.8= 0.5×3.7= 1.7×0.8= 4.4×0.9= 8.8×03= 0.9×1.3= 1.4×0.9= 3.62×1.5= 20.8×0.2= 4.15×0.3= 31.9×0.2= 1.2×1.6= 2.3×1.3= 43.3×0.5= 17.1×0.2= 4.2×0.6= 3.5×0.3= 5.7×0.4= 6.8×0.2= 8.3×0.5= 12.3×0.3= 23.7×0.2= 11.9×0.2= 5.2×0.7= 6.3×0.3= 5.43×0.4= 7.9×0.2= 1.9×0.8= 9.直接写出得数。 0.4×2= 2×0.5= 0.3×7= 0.9×3= 7×0.5= 8×0.6= 0.7×4= 5×0.4= 10.算一算。 0.9×0.3= 1.5×0.4= 0.5×3.3= 3.3×0.7= 0.2×0.5= 1.8×0.5= 7.5×1.9= 0.7×1.3= 2.5×0.4= 2.4×0.2= 0.4×3.6= 2.2×0.7= 11/17 可学科网 www zxxk.com 让教与学更高效 0.8×1.1= 3.4×0.9= 1.4×0.5= 2.12×0.7= 3.6×4.8= 3.06×0.4= 6.3×0.9= 0.25×0.8= 9.8×1.2= 33.4×3.5= 4.67×2.8= 1.7×13.5= 12.5×0.8= 1.99×0.6= 5.6×7.24= 6.8×6.72= 0.8×0.125= 4.72×3.4= 0.2×0.32= 4.39×10= 0.8×0.15= 11.算一算。 0.1×5= 1.6×1= 1.5×2= 0.24×3= 25×0.01= 0.8×25= 1.6×5= 0.2×4= 2.2×5= 2.5×4= 2.7×8= 0.5×8= 1.5×8= 5.2×2= 4.5×5= 2.3×5= 1.8×5= 3.9×10= 3.5×4= 0.25×4= 0.7×9= 1.25×8= 1.11×9= 12.5×8= 0.4×20= 12.7×20= 33.6×2= 4.32×30= 13×0.2= 12.7×100= 0.15×4= 18×0.4= 0.05×22= 12.算一算。 0.8×0.5= 2.4×0.4= 12.5×0.4= 12/17 可学科网 www zxxk.com 让教与学更高效 2.2×10.1= 1.4×0.4= 3.2×0.5= 4.4×0.5= 0.22×101= 8.2×0.5= 25×0.04= 0.125×0.8= 1.01×4.5= 7.6×0.5= 2.1×0.7= 0.24×0.5= 2.5×0.8= 12.5×16= 0.125×1.6= 1.01×0.45= 100.1×3.3= 1.05×8.7= 9.8×0.3= 2.9×0.58= 6.59×0.3= 4.4×10= 0.65×1.6= 2.75×1.2= 2.58×2.9= 0.71×2.3= 0.65×1.69= 13.直接写出得数。 0.4×6= 0.5×1= 0.7×8= 0.3×3= 5×0.8= 7×0.6= 3×0.9= 16×0.01= 14.算一算。 0.6×9= 2.9×5= 2.3×4= 0.4×8= 0.2×5= 1.5×2= 11×0.5= 1.6×0.2= 0.5×3.6= 13/17 可学科网 www zxxk.com 让教与学更高效 0.1×23= 0.4×0.8= 1.7×0.8= 0.4×1.5= 2.5×0.4= 0.7×0.7= 3.8×0.5= 0.6×4.5= 2.4×0.5= 1.4×0.5= 1.1×0.1= 0.7×2.7= 1.8×0.4= 0.4×0.9= 1.2×1.1= 0.7×0.3= 22.4×4= 0.25×0.8= 0.7×100= 1.25×0.8= 12.3×0.7= 15.算一算。 0.1×0.2= 0.6×0.7= 0.4×0.7= 1.1×0.4= 0.2×0.3= 0.7×0.9= 0.6×0.4= 2.2×0.6= 0.3×0.4= 0.8×0.9= 0.6×0.8= 3.3×0.7= 0.4×0.5= 0.9×10= 0.9×0.6= 4.4×0.8= 0.5×0.6= 10×0.1= 0.1×0.5= 5.5×0.9= 0.7×0.8= 12.5×0.8= 0.9×1.8= 1.6×2.5= 0.5×0.7= 0.9×0.5= 0.9×1.2= 14/17 可学科网 www.zxxk.com 让教与学更高效 10.1×7.8= 6.5×2.3= 2.5×1.04= 16.算一算。 0.8×0.2= 4.5×0.4= 1.5×0.3= 5.3×0.5= 1.2×0.5= 4.8×0.5= 25×0.04= 2.3×0.9= 2.8×0.4= 4.7×9.5= 0.5×3.5= 2.01×0.6= 1.5×0.4= 3.04×0.9= 3.6×0.6= 3.33×0.2= 5.1×8.7= 0.05×1.8= 9.8×8.7= 1.05×0.6= 0.26×4.8= 0.55×1.8= 1.25×0.8= 0.76×3.2= 0.24×0.5= 1.2×12.1= 3.1×16.2= 0.24×0.6= 6.07×0.8= 4.84×1.1= 17.算一算。 0.8×7= 1.2×6= 2.4×5= 3.6×4= 7.5×3= 9.2×70= 3.7×0.3= 2.2×0.8= 25×0.4= 15/17 可学科网 www zxxk.com 让教与学更高效 2.18×0.5= 0.29×40= 2.9×0.2= 5.1×0.07= 2.6×0.8= 12.5×80= 5.2×0.01= 7.9×0.9= 0.4×0.6= 12.5×8= 0.6×1.7= 1.03×0.5= 90×0.5= 7.5×0.3= 13.6×0.4= 101×7.7= 0.4×0.25= 0.5×0.04= 0.124×300= 4.82×0.6= 3.03×200= 18.算一算。 0.5×0.5= 2.4×0.1= 0.2×7.5= 8.5×0.6= 1.2×0.4= 4.1×0.4= 1.6×0.5= 2.4×0.7= 8.4×0.5= 6.5×0.3= 0.3×3.7= 3.3×4.3= 8.6×0.9= 7.2×7.8= 2.4×0.5= 4.06×0.5= 4.4×4.3= 0.39×0.2= 7.3×4.6= 0.7×30.4= 12.5×8.7= 0.45×0.3= 0.25×0.2= 0.23×0.5= 0.75×7.5= 0.04×1.3= 0.4×12.5= 16/17 可学科网 www zxxk.com 让教与学更高效 3.03×0.6= 3.81×0.72= 0.65×1.69= 0.8×1.01= 0.45×0.2= 0.35×0.6= 19.算一算。 0.9×0.9= 2.4×0.4= 0.3×2.5= 5.5×0.4= 1.1×0.7= 2.4×0.5= 4.8×0.3= 2.5×0.8= 4.5×0.8= 1.8×1.3= 3.7×0.2= 0.5×3.8= 0.8×12.5= 2.33×0.6= 3.14×0.7= 0.8×0.55= 0.02×1.9= 4.02×0.5= 3.03×0.5= 1.15×0.7= 2.99×0.2= 0.19×3.3= 0.15×0.6= 4.7×0.23= 0.33×0.3= 0.81×0.2= 7.6×0.01= 0.25×0.4= 15.1×0.6= 0.71×0.54= 17/17