小数乘小数（两大类）（专项练习）-2026-2027学年人教版五年级数学上册

**基本信息** 聚焦小数乘小数两大核心类型，通过分层练习强化运算能力与推理意识 **专项设计** |模块|题量/典例|题型特征|知识逻辑| |----|-----------|----------|----------| |类型一：结果化简|36题|需化简与不需化简的乘积结果处理|覆盖小数乘法结果化简的基础操作，建立对乘积末尾0的敏感性| |类型二：位数补0|36题|小数位数不足需补0与不需补0的情况|针对积的小数位数确定的特殊情形，形成从基础计算到特殊处理的递进逻辑|

小数乘小数（专项训练） 类型一：需要化简和不需要化简 5.47×0.78 0.75×0.3 2.65×1.5 4.6×2.5 类型二：小数位数不够需要补0和不需要补0 8.23×0.7 0.23×0.8 0.25×0.05 0.16×0.04 (两大类) 6.34×2.6 7.5×0.26 3.04×1.8 0.35×0.13 小数乘小数对应练习1 类型一：需要化简和不需要化简 4.38X0.67= 0.85×0.6= 3.75×2.2= 5.4×3.5= 类型二：小数位数不够需要补0和不需要补0 9.34×0.6= 0.34×0.7= 0.35×0.06= 0.27×0.05= 7.26×3.4= 8.6×0.35= 4.05×2.6= 0.46×0.24= 小数乘小数对应练习2 类型一：需要化简和不需要化简 6.52×0.83= 0.95×0.4= 4.85×1.4= 6.8×2.5= 类型二：小数位数不够需要补0和不需要补0 7.46×0.8= 0.45×0.6= 0.45×0.08= 0.38×0.04= 8.47×2.5= 9.2×0.45= 5.06×3.2= 0.57×0.35= 小数乘小数对应练习3 类型一：需要化简和不需要化简 3.74×0.56= 0.65×0.8= 2.95×3.6= 7.2×1.5= 类型二：小数位数不够需要补0和不需要补0 6.58×0.7= 0.56×0.9= 0.55×0.07= 0.49×0.03= 5.38×4.2= 6.4×0.55= 3.07×4.5= 0.68×0.46= 小数乘小数对应练习4 类型一：需要化简和不需要化简 8.63×0.72= 0.45×0.6= 5.65×2.4= 3.6×4.5= 类型二：小数位数不够需要补0和不需要补0 8.72×0.5= 0.67×0.8= 0.65×0.09= 0.56×0.02= 4.29×3.8= 7.8×0.65= 6.09×2.4= 0.79×0.57= 小数乘小数对应练习5 类型一：需要化简和不需要化简 5.86×0.94= 0.35×0.8= 3.45×4.8= 8.4×3.5= 类型二：小数位数不够需要补0和不需要补0 5.64×0.9= 0.78×0.4= 0.75×0.04= 0.63×0.06= 9.15×2.6= 4.2×0.75= 7.03×5.2= 0.84×0.68=小数乘小数（专项训练） 类型一：需要化简和不需要化简 5.47×0.78 0.75×0.3 2.65×1.5 4.6×2.5 类型二：小数位数不够需要补0和不需要补0 8.23×0.7 0.23×0.8 0.25×0.05 0.16×0.04 (两大类) 6.34×2.6 7.5×0.26 3.04×1.8 0.35×0.13 小数乘小数对应练习1 类型一：需要化简和不需要化简 4.380.67= 0.85×0.6= 3.75×2.2= 5.4×3.5= 类型二：小数位数不够需要补0和不需要补0 9.34×0.6= 0.34×0.7= 0.35×0.06= 0.27×0.05= 7.26×3.4= 8.6X0.35= 4.05×2.6= 0.46×0.24= 小数乘小数对应练习2 类型一：需要化简和不需要化简 6.52×0.83= 0.95×0.4= 4.85×1.4= 6.8×2.5= 类型二：小数位数不够需要补0和不需要补0 7.46×0.8= 0.45×0.6= 0.45×0.08= 0.38×0.04= 8.47×2.5= 9.2×0.45= 5.06×3.2= 0.57×0.35= 小数乘小数对应练习3 类型一：需要化简和不需要化简 3.74×0.56= 0.65×0.8= 2.95×3.6= 7.2×1.5= 类型二：小数位数不够需要补0和不需要补0 6.58×0.7= 0.56×0.9= 0.55×0.07= 0.49×0.03= 5.38×4.2= 6.4×0.55= 3.07×4.5= 0.68×0.46= 小数乘小数对应练习4 类型一：需要化简和不需要化简 8.63×0.72= 0.45×0.6= 5.65×2.4= 3.6×4.5= 类型二：小数位数不够需要补0和不需要补0 8.72×0.5= 0.67×0.8= 0.65×0.09= 0.56×0.02= 4.29×3.8= 7.8×0.65= 6.09×2.4= 0.79×0.57= 小数乘小数对应练习5 类型一：需要化简和不需要化简 5.86×0.94= 0.35×0.8= 3.45×4.8= 8.4×3.5= 类型二：小数位数不够需要补0和不需要补0 5.64×0.9= 0.78×0.4= 0.75×0.04= 0.63×0.06= 9.15×2.6= 4.2×0.75= 7.03×5.2= 0.84×0.68=小数乘小数（专项训练） 类型一：需要化简和不需要化简 5.47×0.78 0.75×0.3 2.65×1.5 4.6×2.5 类型二：小数位数不够需要补0和不需要补0 8.23×0.7 0.23×0.8 0.25×0.05 0.16×0.04 类型一：需要化简和不需要化简 5.47×0.78=4.2666 0.75×0.3=0.225 6.34×2.6=16.484 2.65×1.5=3.975 4.6×2.5=11.5 (两大类) 6.34×2.6 7.5×0.26 3.04×1.8 0.35×0.13 7.5×0.26=1.95 类型二：小数位数不够需要补0和不需要补0 8.23×0.7=5.761 0.23×0.8=0.184 3.04X1.8=5.472 0.25×0.05=0.0125 0.16×0.04=0.0064 0.35×0.13=0.0455 小数乘小数对应练习1 类型一：需要化简和不需要化简 4.38×0.67= 0.85×0.6= 3.75×2.2= 5.4×3.5= 类型二：小数位数不够需要补0和不需要补0 9.34×0.6= 0.34×0.7= 0.35×0.06= 0.27×0.05= 类型一 4.38×0.67=2.9346 0.85×0.6=0.51 7.26×3.4=24.684 3.75×2.2=8.25 5.4×3.5=18.9 7.26×3.4= 8.6×0.35= 4.05×2.6= 0.46×0.24= 8.6×0.35=3.01 类型二 9.34×0.6=5.604 0.34×0.7=0.238 4.05×2.6=10.53 0.35×0.06=0.021 0.27×0.05=0.0135 0.46×0.24=0.1104 小数乘小数对应练习2 类型一：需要化简和不需要化简 6.52×0.83= 0.95×0.4= 4.85×1.4= 6.8×2.5= 类型二：小数位数不够需要补0和不需要补0 7.46×0.8= 0.45×0.6= 0.45×0.08= 0.38×0.04= 类型一 6.52×0.83=5.4116 0.95×0.4=0.38 8.47×2.5=21.175 4.85×1.4=6.79 6.8×2.5=17 8.47×2.5= 9.2×0.45= 5.06×3.2= 0.57×0.35= 9.2×0.45=4.14 类型二 7.46×0.8=5.968 0.45×0.6=0.27 5.06×3.2=16.192 0.45×0.08=0.036 0.38×0.04=0.0152 0.57×0.35=0.1995 小数乘小数对应练习3 类型一：需要化简和不需要化简 3.74×0.56= 0.65×0.8= 2.95×3.6= 7.2×1.5= 类型二：小数位数不够需要补0和不需要补0 6.58×0.7= 0.56×0.9= 0.55×0.07= 0.49×0.03= 类型一 3.74×0.56=2.0944 0.65×0.8=0.52 5.38×4.2=22.596 2.95×3.6=10.62 7.2×1.5=10.8 5.38×4.2= 6.4×0.55= 3.07×4.5= 0.68×0.46= 6.4×0.55=3.52 类型二 6.58×0.7=4.606 0.56×0.9=0.504 3.07×4.5=13.815 0.55×0.07=0.0385 0.49×0.03=0.0147 0.68×0.46=0.3128 小数乘小数对应练习4 类型一：需要化简和不需要化简 8.63×0.72= 0.45×0.6= 5.65×2.4= 3.6×4.5= 类型二：小数位数不够需要补0和不需要补0 8.72×0.5= 0.67×0.8= 0.65×0.09= 0.56×0.02= 类型一 8.63X0.72=6.2136 0.45×0.6=0.27 4.29×3.8=16.302 5.65×2.4=13.56 3.6×4.5=16.2 4.29×3.8= 7.8×0.65= 6.09×2.4= 0.79×0.57= 7.8×0.65=5.07 类型二 8.72×0.5=4.36 0.67×0.8=0.536 6.09×2.4=14.616 0.65×0.09=0.0585 0.56×0.02=0.0112 0.79×0.57=0.4503 小数乘小数对应练习5 类型一：需要化简和不需要化简 5.86×0.94= 0.35×0.8= 3.45×4.8= 8.4×3.5= 类型二：小数位数不够需要补0和不需要补0 5.64×0.9= 0.78×0.4= 0.75×0.04= 0.63×0.06= 类型一 5.86×0.94=5.5084 0.35×0.8=0.28 9.15×2.6=23.79 3.45×4.8=16.56 8.4×3.5=29.4 9.15×2.6= 4.2×0.75= 7.03×5.2= 0.84×0.68= 4.2×0.75=3.15 类型二 5.64×0.9=5.076 0.78×0.4=0.312 7.03×5.2=36.556 0.75×0.04=0.03 0.63×0.06=0.0378 0.84×0.68=0.5712小数乘小数（专项训练） 类型一：需要化简和不需要化简 5.47×0.78 0.75×0.3 2.65×1.5 4.6×2.5 类型二：小数位数不够需要补0和不需要补0 8.23×0.7 0.23×0.8 0.25×0.05 0.16×0.04 类型一：需要化简和不需要化简 5.47×0.78=4.2666 0.75×0.3=0.225 6.34×2.6=16.484 2.65×1.5=3.975 4.6×2.5=11.5 7.5×0.26=1.95 类型二：小数位数不够需要补0和不需要补0 8.23×0.7=5.761 0.23×0.8=0.184 3.04×1.8=5.472 0.25×0.05=0.0125 0.16×0.04=0.0064 0.35×0.13=0.0455 (两大类) 6.34×2.6 7.5×0.26 3.04×1.8 0.35×0.13 小数乘小数对应练习1 类型一：需要化简和不需要化简 4.38×0.67= 0.85×0.6= 3.75×2.2= 5.4×3.5= 类型二：小数位数不够需要补0和不需要补0 9.34×0.6= 0.34×0.7= 0.35×0.06= 0.27×0.05= 类型一 4.38×0.67=2.9346 0.85×0.6=0.51 7.26×3.4=24.684 3.75×2.2=8.25 5.4×3.5=18.9 8.6×0.35=3.01 类型二 9.34×0.6=5.604 0.34×0.7=0.238 4.05×2.6=10.53 0.35×0.06=0.021 0.27×0.05=0.0135 0.46×0.24=0.1104 7.26×3.4= 8.6×0.35= 4.05×2.6= 0.46×0.24= 小数乘小数对应练习2 类型一：需要化简和不需要化简 6.52×0.83= 0.95×0.4= 4.85×1.4= 6.8×2.5= 类型二：小数位数不够需要补0和不需要补0 7.46×0.8= 0.45×0.6= 0.45×0.08= 0.38×0.04= 类型 6.52×0.83=5.4116 0.95×0.4=0.38 8.47×2.5=21.175 4.85×1.4=6.79 6.8×2.5=17 9.2×0.45=4.14 类型二 7.46×0.8=5.968 0.45×0.6=0.27 5.06×3.2=16.192 0.45×0.08=0.036 0.38×0.04=0.0152 0.57×0.35=0.1995 8.47×2.5= 9.2×0.45= 5.06×3.2= 0.57×0.35= 小数乘小数对应练习3 类型一：需要化简和不需要化简 3.74×0.56= 0.65×0.8= 2.95×3.6= 7.2×1.5= 类型二：小数位数不够需要补0和不需要补0 6.58×0.7= 0.56×0.9= 0.55×0.07= 0.49×0.03= 类型一 3.74×0.56=2.0944 0.65×0.8=0.52 5.38×4.2=22.596 2.95×3.6=10.62 7.2×1.5=10.8 6.4×0.55=3.52 类型二 6.58×0.7=4.606 0.56×0.9=0.504 3.07×4.5=13.815 0.55×0.07=0.0385 0.49×0.03=0.0147 0.68×0.46=0.3128 5.38×4.2= 6.4×0.55= 3.07×4.5= 0.68×0.46= 小数乘小数对应练习4 类型一：需要化简和不需要化简 8.63×0.72= 0.45×0.6= 5.65×2.4= 3.6X4.5= 类型二：小数位数不够需要补0和不需要补0 8.72×0.5= 0.67×0.8= 0.65×0.09= 0.56×0.02= 类型 8.63×0.72=6.2136 0.45×0.6=0.27 4.29×3.8=16.302 5.65×2.4=13.56 3.6×4.5=16.2 7.8×0.65=5.07 类型二 8.72×0.5=4.36 0.67×0.8=0.536 6.09×2.4=14.616 0.65×0.09=0.0585 0.56×0.02=0.0112 0.79×0.57=0.4503 4.29×3.8= 7.8×0.65= 6.09×2.4= 0.79×0.57= 小数乘小数对应练习5 类型一：需要化简和不需要化简 5.86×0.94= 0.35×0.8= 3.45×4.8= 8.4×3.5= 类型二：小数位数不够需要补0和不需要补0 5.64×0.9= 0.78×0.4= 0.75×0.04= 0.63×0.06= 类型 5.86×0.94=5.5084 0.35×0.8=0.28 9.15×2.6=23.79 3.45×4.8=16.56 8.4×3.5=29.4 4.2×0.75=3.15 类型二 5.64×0.9=5.076 0.78×0.4=0.312 7.03×5.2=36.556 0.75×0.04=0.03 0.63×0.06=0.0378 0.84×0.68=0.5712 9.15×2.6= 4.2×0.75= 7.03×5.2= 0.84×0.68=