小数乘除法练习题(1).

小数乘除法竖式计算题15道(简单)1. 题目一：小数乘除法竖式计算题15道(简单)欢迎大家来到今天的数学课堂！在本节课上，我们将练习一些小数的乘除法计算题。

这些题目相对简单，适合初学者。

让我们开始吧！1. 0.3 × 0.5 =解：将两个小数竖式排列，按乘法计算规则依次相乘，然后根据小数点位置确定答案的小数位数。

计算过程如下：```0.3× 0.5------0.15------```答案是 0.15。

2. 0.6 ÷ 0.2 =解：将被除数和除数的小数点对齐，按除法计算规则计算商的整数部分，然后将余数乘以10，再按除法规则计算下一位。

计算过程如下：```3-----6 | 0.6|- 0.6-----```答案是 3。

3. 0.45 × 0.1 =解：按照乘法计算规则计算小数的乘法，计算过程如下： ```0.45× 0.1------0.045------```答案是 0.045。

4. 0.8 ÷ 0.4 =解：按照除法计算规则计算小数的除法，计算过程如下： ```2------4 | 0.8|- 0.8------```答案是 2。

5. 0.75 × 0.2 =解：按照乘法计算规则计算小数的乘法，计算过程如下： ```0.75× 0.2------0.15------```答案是 0.15。

6. 0.9 ÷ 0.3 =解：按照除法计算规则计算小数的除法，计算过程如下： ```3------3 | 0.9|- 0.9------```答案是 3。

7. 1.2 × 0.4 =解：按照乘法计算规则计算小数的乘法，计算过程如下： ```1.2× 0.4------------```答案是 0.48。

8. 1.8 ÷ 0.9 =解：按照除法计算规则计算小数的除法，计算过程如下： ```2------9 | 1.8|- 1.8------```答案是 2。

小数乘法练习题1一、一般乘法竖式计算题65×0.70.0016×130.65×0.170.62×5.2 0.65×7.372×0.038.7×0.927.65×8.53.7×0.016 5.76×1.3 3.83×2.6 1.28×0.04二、乘数中间有“0”的乘法56.2×4.08 2.02×3.6125×2.0423.5×1.022.5×20.18.81×1.0119.1×0.307 2.01×1.03三、积末尾有“0”的乘法1.6×0.850.35×8.042.25×2.40.15×2.8 0.25×0.443.15×1.80.025×36 1.25×0.8三、简便计算。

0.125×64 0.68×101 3.26×5.7－3.26×0.7 55.6×99＋55.6 1.25×213×0.8 19.625－(4.379＋9.625)3.42×5.7＋4.3×3.42 8.75×11－8.75 9.9×202小数乘法练习题2一、一般乘法竖式计算题205×0.18305×0.14 2.03×0.1310.2×2.3 103×0.230.408×0.24 1.05×3.5 1.07×1.8 2.03×0.1420.4×2.6205×0.130.34×0.126 0.32×0.14 2.4×0.96 0.5×0.15 0.36×2.3二、乘数中间有“0”的乘法518×3.070.131×202 4.15×1.03 2.42×1.051.25×8.08 1.02×2.15 1.02×20.6 2.05×4.6三、积末尾有“0”的乘法18.6×1.5 2.06×0.25 2.8×0.165 2.36×0.351.25×8.80.24×2.50.025×14 1.05×35三、简便计算。

小数乘除法的练习题(100题)一班别：________ 姓名：________ 学号：________ 成绩:________3.78×9.66=0.7÷3.29= 5.67÷2.98=4.91×4.21= 7.63÷0.48= 3.5×1.76=9.69÷2.03= 4.85÷7.54= 2.86×4.19=9.2×0.31= 6.02×8.45= 6.36÷8.21= 6.47×9.14=5.7×3.52= 5.6÷3.98= 3.56×1.13= 8.49÷3.26=4÷5.63=9.44÷0.16= 2.1÷5.39= 1.9×8.39=11×10=9.15÷7.04=6.29÷7.24=9.75÷0.83=9.1×5.05=9.7÷2.96=8×4.5=10.1÷5.82= 1.8×1.68= 3.01×9.34= 3.11×1.24= 7.64×8.05= 5.3×0.26= 5.68÷2.36= 4.3×1.65= 5.92÷4.71=7.8×3.77=8.29×9.86= 2.05÷2.4= 2.85×5.3=2÷6.3= 5.54÷2.27=9.41×4.54= 6.58÷5.55=8×0.1= 4.36÷1.58= 2.6÷7.38= 8.08×9.31= 2.7÷6.52=10.2÷9.98= 3.75÷9.86=0.14×1.48= 6.2÷9.09=8.66÷3.98= 4.14÷8.07=1.31×3.71= 3.6÷7.58=2.8×5.16=0.47÷9.43= 6.85÷0.54= 5.7×1.15= 2.41÷1.05=10.9×1.87= 10.1÷0.58=3×1.99=9.9÷7.97= 5.1×3.44= 3.57÷0.98=4.6×2.08=5.93÷5.2=6.01÷7.78= 10.4÷10.1=3÷9.35= 4.47÷4.2= 3.04×2.86= 2.39÷1.15=9.7×4.97=11÷0.19=7.05÷8.67= 0.36×4.56= 1.7÷10.9= 1.26×1.4= 4.83÷9.07= 2.74×3.61= 1.5÷10.3= 5.13÷0.68= 6.15×2.73= 1.8×9.44= 3.1×0.62= 1.46×5.79=8.44×5.46= 7.04×7.89=7.3÷9.43= 3.38×4.83= 1.5÷6.4=10.1÷5.67=7.1×1.96=8.07×8.9= 5.32×1.71=小数乘除法的练习题(100题)二班别：________ 姓名：________ 学号：________ 成绩:________5.07÷4.09=10×4.02=6.19÷1.61=7.9×0.46=8.38÷6.07= 2.8÷4.27=8.07÷1.04=10.1×8.27=8.11÷8.1= 5.6×3.56= 6.04÷4.16=9.92×7.7=9.4×10.5= 1.7×0.38=8.67÷0.01= 3.77×3.31= 0.55×9.26=9.4×8.37=10.7÷1.34= 1.77÷4.63= 7.49×10.8= 2.7×2.62=8.77÷6.73=7.57×5.46= 4.32×6.34= 3.3×0.44=10÷9.51= 4.51÷5.4= 1.22×9.9= 2.3÷9.73=0.96×4.31=9.32×8.71= 10.2÷4.38= 3.1×1.34=9.42÷1.5= 5.88÷10.9= 10.5÷1.61=10×5.71=7.44÷0.78= 5.14×0.46= 4.6×6=11×9.4= 1.35×2.32= 5.87÷9.05= 3.07×8.74=8.4÷8.79=10.2÷2.02= 2.23÷4.59= 2.31×2.56= 2.2×0.64= 2.93×5.18=8.01×0.44= 2.17×6.82=7.3×0.36= 3.54÷0.9=7.5×7.34= 4.87×9.88= 6.3×1.16= 1.38×5.78= 4.72×1.27= 10.3÷2.88=7.6÷9.91=8÷6.43= 6.35÷6.5= 10.6÷9.66= 6.9÷7.61= 5.13×9.76=9.89×1.3= 7.44÷5.58=8.1×4.11= 2.57×3.01=8.28÷9.74= 6.51×8.93= 3.9÷10.3=10.6÷0.33= 4.15÷7.79= 1.42×8.66=10÷10.7= 6.97÷4.23=7.26×0.7= 6.86÷1.43=9.9×3.09= 2.1×7.83=0.69÷10= 8.6×10.4= 2.5×1.43=8.06÷2.43= 1.96÷9.23= 1.04×7.61=0.4÷6.92=9.34×9.82=9.03×8.54=10.5×10.6=11×1.89= 6.62÷3.98=10.1×7.31=小数乘除法的练习题(100题)三班别：________ 姓名：________ 学号：________ 成绩:________9.71×10.6=2÷6.32=0.6×1.29=9.91×2.36= 6.54×7.25=8.8×6.43= 5.22÷1.23= 2.24÷5.24= 10.9÷5.32= 4.2÷10.1=8.75÷4.73=10.2×6.03= 6.46÷4.49= 6.2×4.39=9.21×9.57=7.06×2.21= 0.35×1.23= 1.1÷8.86=0.29×10.2= 5.79×2.17= 8.28÷2.04= 3.7×0.53=9.93÷7.36=9.54×5.18= 8.64÷8.26=7.5×4.78=8.55÷1.82=8.71×6.87=3.86×8.5= 5.3×5.07=9.73÷9.64= 5.93×5.88=4.34×9.23=2×1.04=9.83÷7.96= 6.67÷10= 1.93×3.36= 2.3÷3.86=0.28×9.43=9.77÷10.6=4÷1.45= 4.6÷9.11=0.23×2.13=7.5×2.77= 8.76×9.63=8.3×7.93=0.89×5.29=0.39÷4.19= 7.64×10.3=10×7.95= 4.1×10.9= 1.29÷8.97= 1.18×8.99= 6.7×0.79= 1.95×10.8=7.97×5.1= 5.25÷1.48= 6.7×5.79= 1.38×5.37=9.6×2.63= 4.52×4.54= 1.2÷8.91= 4.89÷1.76= 6.87÷8.5= 10.7÷1.94= 6.5×3.71= 2.56÷1.54= 5.99×4.03= 10.1×10.6=8.9×7.6= 5.2÷2.83= 5.91×3.2= 5.49÷2.47=2÷7.64=10.7÷3.38= 5.41×2.05= 3.32÷2.75=11×7.97=7.25÷5.82=0.2÷3.97= 0.83×5.15=0.7÷5.64= 4.62×9.72=5÷6.76= 6.67×7.74= 1.6÷2.03= 3.46÷2.44=8.61×6.41=9.07×10= 2.7÷8.37= 1.97×3.35= 1.47÷5.3= 0.81×9.82=7×5.75= 4.77×4.95= 6.42×5.68=小数乘除法的练习题(100题)四班别：________ 姓名：________ 学号：________ 成绩:________3.1×6.34=9.5÷10.6=10.8÷8.53= 3.9×1.09= 0.23×9.72=8.4×4.36=0.28×4.67= 4.88÷6.93= 8.96÷8.28=2÷9.6=9.63÷3.94= 6.99×5.38= 8.67÷6.44= 6.5×2.04= 2.53×5.8=9.6÷10=4.83×7.01=11×8.67= 1.09×1.84= 4.17÷8.79=5.73×6.03=8.2×7.64= 3.52÷2.74=8.41×2.52= 8.91÷0.82= 4.7×0.89=0.26×8.12=8.39×2.32= 10.8÷3.13= 2.8÷5.21= 3.75×7.08=8.89×3.93= 1.06×6.59=0.4÷1.6=7.01÷2.25= 5.88×2.57= 5.13×10.9=11×1.93= 4.71×6.06=7.2÷10.3= 7.02×10.3= 4.8÷7.25= 6.76×8.35= 3.33÷8.48= 3.86×5.87=8.1×6.87= 6.88÷4.7= 1.28÷1.93=9.45×9.87= 5.4÷9.21=0.5×0.9= 5.65÷8.77= 2.96×7.34=0.9÷3.73= 6.13÷4.48=10.9×10.4= 7.34×8.27=9.3×9.23=9.75×10.5=9.09÷9.77= 0.41×4.54=8.5×7.2=8.54÷6.77= 5.61×1.79= 7.56÷2.68=0.9×0.2= 3.14÷0.06= 5.22×3.7= 5.85÷4.21=9×4.56= 2.67×4.07= 3.64÷9.33= 1.52÷1.28=7.8×2.44=8.13÷5.9= 3.3×2.72= 7.39÷2.89=0.9×0.66= 1.17×3.76=0.4÷3.48= 3.14×11= 6.8×1.62=7.13÷0.95= 3.29×1.18=1.27×9.57=11×6.21=8.77÷6.21=7.57÷9.09= 3.59×10.6= 1.4×0.24=7.41×8.64=11×4.49= 9.77÷0.27=9.4×4.5=10.1÷4.88= 1.9÷9.63=小数乘除法的练习题(100题)五班别：________ 姓名：________ 学号：________ 成绩:________8.88÷3.17= 6.6÷7.28= 5.68×6.87=10.8×7.72= 6.42×9.75= 2.7÷7.84=8.88×8.93=2÷5.91= 0.69×1.43=0.2÷7.61= 6.81÷0.69=7.3÷9.96= 3.27×5.13= 6.3×0.64= 3.92÷1.76= 5.91÷7.31= 9.42÷4.31=7.7×4.38= 2.41÷1.76= 5.64×1.2= 5.49×5.69= 1.4÷7.36= 1.36×8.51= 5.18÷5.85= 3.39×10.9=11×9.01= 2.19×5.97= 2.36×0.31= 8.39÷3.22=0.3÷10.2= 1.67÷1.5=7.23×6.53= 3.02×10.8=9.3×6.43=8.21×10.9=9.29÷9.31= 3.61×9.47= 4.8×4.71= 5.29×8.84=8.43×0.6= 9.79÷9.37= 3.5×1.98= 4.93×6.82=7.62×5.13=5.05×7.59=7.8×7.18= 2.09×9.8= 1.82÷6.69=6.15×6.93=8.2×7.32=10.2÷3.61= 1.8÷8.89= 5.24×7.11=7.4×6.5= 2.27×10.5= 3.09÷9.35= 0.89×4.08= 4.3×2.08=10.2÷9.98= 3.98×3.06= 8.93×9.66=0.1÷5.48= 5.37×10.8=7.65×1.91=8.15×8.68=8.8×7.72= 5.47÷1.6=9.21×1.83=9.68÷1.96= 6.4×5.72= 4.53×5.17= 6.51×5.78= 3.26×9.68= 2.8×1.53= 2.26×7.91= 1.69÷7.31= 3.03×3.79= 5.1×0.34=10.4÷7.87= 5.69×1.94=6.05×7.77= 4.3÷10.1=10.8÷7.31= 4.05÷5.17=8.38÷3.96=9.6×4.63= 5.62×10.7=9.66×9.42= 5.37×7.7= 5.8×5.21=0.12×10.8= 3.55÷8.81= 10.4÷2.06= 5.3÷6.21= 1.36×5.02=8.57×2.77=小数乘除法的练习题(100题)六班别：________ 姓名：________ 学号：________ 成绩:________6.04×8.83=0.5÷0.49=10.1÷9.74= 3.72×3.41= 3.81÷3.15= 6.4×0.2= 6.7×10.6=8.8×1.18= 5.1÷1.04= 3.2÷8.08= 4.65×5.45=10.6×1.56=7.87÷6.51=10×8.53=10.5÷2.91=9.69×3.76= 3.38×5.86= 4.6×4.43= 1.36×2.65=9.17×4.72= 3.8×9.58= 3.1×0.46= 5.62÷2.05= 4.15÷8.82= 6.77÷5.02=7.7×0.69= 4.95÷4.12=10.7×2.69= 3.64×4.3=11×9.21= 3.66×6.17=9.63÷9.98= 9.14÷2.76=4×2.08=10.3×10.6= 3.37÷9.63= 1.06×3.51= 1.5÷9.45= 2.97÷0.98= 5.18÷6.01= 8.86×10.5= 3.5×2.08=9.48÷5.29=8.87÷9.52= 0.17×6.46= 4.3÷8.05= 4.97÷3.61= 4.5×3.51= 0.88×7.72=0.8÷6.09= 2.4×8.76= 1.44÷5.53= 2.69×10.3= 3.4×3.22=0.7×1.76= 2.68÷11= 2.82÷2.37=9.1×3.21= 6.6÷1=8.07×4.89= 9.46÷5.16=9.9×0.26=7.99÷1.72= 6.38×1.66= 8.64÷2.71=7.9×0.01= 6.48×8.96=9.58×3.13= 6.89×10.6= 1.3÷4.98= 5.95÷4.17=7.26×7.2= 9.4÷7.27=1÷1.49=7.13÷4.56= 1.58÷7.92=1.59×3.89= 3.5÷7.33= 6.93÷4=7.04×4.09= 4.75×5.64=9.1÷10.2=9.06×9.93= 3.81÷7.21= 1.23÷0.05= 1.7÷9.72= 4.33×9.08=0.46÷1.71= 7.39×11=10×3.36= 3.03×4.54=2.27×0.33= 6.64×10.6=8×4.28= 1.5×6.06=7.98÷9.63=小数乘除法的练习题(100题)七班别：________ 姓名：________ 学号：________ 成绩:________4.54÷1.83=9.7×5.97= 4.24×10.6=8.25÷10= 3.52×6.25=8.8÷10.1= 4.98×5.86=0.05÷4.88=5.86÷0.11=0.1÷7.19= 3.53÷2.88=8.05÷8.29=6.88÷0.28=8.4×1.88=8.81÷2.29=10.7×9.78= 10.8÷4.38= 1.2÷4.02=8.37÷2.73= 6.63×4.86= 1.71×2.13= 1.2÷1.9= 3.26÷1.68= 5.47÷9.96=9.82÷8.46=11×4.79= 2.66×10.6=8.07×3.55=10.8÷1.27= 6.1×4.95= 1.74×2.11=9.49×3.75= 6.49÷3.27=7÷9.71=0.05×4.73=9.64×9.29= 10.9÷5.38=2×0.38=7.83×10.8= 2.3÷3.76=4.99×10.7=0.9÷9.81=9.72×10.9=10.3×1.09=5.49÷2.48= 2.3×0.68= 3.41×6.45=7.86×1.64=6.63÷3.16=6÷7.74= 2.28×2.71= 5.6×0.21= 6.97×9.2=0.6÷6.2=8.04×9.7= 4.5÷8.42= 0.5×1.08= 3.5÷7.6=8.63÷0.32=8.72×2.55= 9.33×9.89= 2.1÷3.75= 5.56×7.74= 6.56÷9.28= 9.03÷8.12= 3.4÷4.67= 6.86×9.74= 1.01÷7.76= 8.12×10.6= 2.6÷9.78= 3.98×8.75= 3.49×3.16=2.08÷0.57=11×6.14=0.53×8.96=10.9×4.29= 0.81÷0.32= 2.7÷10.6=10.4×10.5= 5.5÷6.49= 2.55÷1.51= 6.6÷6.94= 5.31÷2.29=10.9×10.7= 5.2×6.72=9.5×1.75= 4.59÷3.78= 2.74÷9.83= 8.95÷4.44=5.7×0.24= 4.19×8.77= 2.29×0.45= 0.39×6.8=5×3.67=0.37×4.76=0.29÷8.35= 2.02×6.48= 4.3÷7.44=7.63×8.8= 3.26×2.14=小数乘除法的练习题(100题)八班别：________ 姓名：________ 学号：________ 成绩:________9.55×10.3= 5.2÷7.49= 3.64×4.65= 6.08×1.08= 9.84÷1.95= 1.9÷8.07= 5.37÷2.19= 5.77×0.81= 7.7÷7.39=8.8÷10.9=9.05÷1.47= 2.86÷10.1= 2.11×5.49= 4.8×4.16= 4.06×10.4= 2.69÷7.42= 2.81×8.36=11×8.65= 4.13×8.43=7.57×6.69= 0.11×3.85=11×10.1=0.77×9.95= 2.45÷4.77= 0.91×7.16= 3.9÷8.53= 2.77×9.95= 4.6×3.87= 10.7÷4.37=0.7÷4.27= 3.81×11=0.65÷5.19= 7.56÷3.54= 1.4÷3.69=9.38÷2.43= 4.13×0.53=3.65×8.11= 2.1×0.53=9.97÷2.29= 5.31×3.81=4.65÷3.94= 2.2×1.21=10.7÷1.06=10.9×0.85= 4.54×7.52=9.2×2.86= 1.94×5.96=10.1×5.02=9.92÷0.19= 5.7÷7.47=8.33÷4.3= 5.85×4.47=10.8÷7.16=8.7×8.04=10.5÷4.05=9.53×5.73= 10.3÷5.78= 1.7÷10.4=0.59×6.76=9.97×1.81= 3.34÷2.69= 2.2÷8.34= 1.47÷0.11= 2.55÷9.92= 6.43×6.63= 3.4÷6.61=8.81÷1.3=10.6×3.75=7.26÷6.7= 4.1÷10.2=10.2÷0.03= 3.59÷9.71= 1.24÷1.06=7.5×4.51=9.7÷2.15=8.36×3.88=10÷2.17= 2.3×0.73= 1.82×5.27= 5.48÷6.83= 4.35×9.35= 2.8×2.11= 2.94×4.16= 2.29÷6.28= 3.6×3.78=10×2= 3.43×6.06=10×6.38= 1.8×5.79= 2.4÷5.83=7.42÷6= 3.53×2.87= 10.6÷5.56= 2.4÷4.96= 4.13×6.27=7.8×4.18=小数乘除法的练习题(100题)九班别：________ 姓名：________ 学号：________ 成绩:________10.4÷1.47= 4.2÷5.73= 4.53÷4.37= 4.88×2.51= 4.1×7.52=9.6×1.83= 6.33÷3.02= 1.81÷4.75= 0.95×1.23=7.8×0.47=10.3÷5.91= 2.12÷8.47= 0.39×9.29= 6.3÷7.6= 1.45×8.64=9.98×9.23= 3.06÷2.31= 3.9÷6.99=0.24×6.32= 3.16÷3.24= 2.25×6.93=0.6÷6.59=9.1÷8.8= 4.2÷7.66= 9.74÷7.03= 5.4÷5.79=10.6÷2.53= 2.91÷3.42= 6.87÷3.83= 3.6÷3.91=10.9÷3.11= 2.65÷10.8=8.08÷6.28=1÷7.77= 6.16×10.6= 2.06÷4=9.38÷6.48=11×4.61= 5.23×5.32=9.84×9.11=10.5÷10.1=7.7÷9.23=9.48×9.94=0.35÷9.6= 10.6÷3.6= 1.8÷2.46= 5.38÷2.22=9.65×0.89= 2.3×6.24=0.7÷10.2=0.96×3.82= 1.26÷5.13= 0.61÷0.61= 5.9×0.7=7.03÷3.3= 2.35÷7.07= 9.76÷0.64= 2.3÷2.38= 1.83÷0.55=7.34÷8.78= 4.09×9.93=2×1.13= 2.1÷1.71= 4.46×3.15=6.01×6.42=7.6×4.37= 5.46×5.8=10.7×4.35=8.7÷5.77=7.4÷9.57= 6.81×10= 1.43÷9.21= 3.93÷1.79=9.8×6.95= 2.33×5.45= 3.83×1.72= 2.42×3.89=8.4×3.17=9.41÷4.46=7.64×1.86= 8.48×9.62=7.6÷9.09= 2.78×2.96=9.01×0.62= 2.5×6.22= 6.9×5.58=9.34×9.7= 4.81×3.76=2.65÷2.4=3.7÷4.8= 4.52÷4.41=0.52÷9.92=3.94×9.14=8.8×1.3=9.87÷2.65=4.77÷6.73=小数乘除法的练习题(100题)十班别：________ 姓名：________ 学号：________ 成绩:________10.5÷5.18=7.8×2.53= 1.92×2.9= 6.34÷9.64= 2.35×9.79= 6.5×0.85= 5.03×5.68= 6.39×3.44= 8.53÷1.76=7.9×6.14=8.56÷3.68= 1.16÷6.85= 7.5÷5.21=8.2×5.69= 2.09×4.49=7.67÷7.67= 9.43÷2.97= 3.9×0.12= 3.92×10.2= 3.03×1.99= 3.22÷1.79=11÷11=0.57×3.42=10.3×9.41= 6.76×6.97= 3.8×1.86=0.39×10.3=9.44×0.3=8.1÷2.29= 6.1×2.45= 5.35÷3.01=9.97×6.97=9.71÷2.43= 3.4×1.29= 1.66×2.76= 2.03÷6.37= 4.42÷3.13= 3.4×1.79=0.61×0.63=0.19÷0.94= 3.74×10.4= 5.8÷8.5= 5.56÷5.14=0.86×0.39= 10.4÷6.78= 6.3×4.81=9.49÷1.22=10.5×6.31= 7.99÷3.72=7.3×2.81=10.7÷2.23= 1.79÷2.54= 7.08×10.2= 1.2÷3.21=8.46×9.58=10.2×6.18= 1.97÷1.44=8.3×3.25= 3.4÷0.74= 5.89×4.16=6.79÷2.9= 5.8×0.65=0.83÷0.48=10.9×10.1= 1.56×7.35=8.1×4.67=8.96÷5.15= 2.35÷8.64= 4.88×10.7= 6.8×0.26=7.8÷4.07=8.74×0.44= 4.72÷0.06= 1.6÷4.27=0.32×9.87= 1.51×1.01= 6.51×7.18= 4.3÷7.08= 5.46÷1.63=10.4×1.45=9.64÷0.63=7.3×2.86= 1.26×10=0.45÷9.83=10.8÷6.4= 3.1÷9.66=7.38÷6.66=7.82×4.24= 4.43×9.33= 4.7÷8.62= 2.54×3.71=0.74÷9.98= 9.18÷6.58= 3.3÷7.11=10.1×10.4= 4.45×3.09= 9.06÷8.53=9.1×7.02= 4.31÷0.91=10.6×7.35=。

五年级上册小数乘除法计算题（一）5.6×2.9 3.77×1.80.02×96 5.22×0.39.99×0.02 4.67×0.9 5×2.44 1.666×6.19.432×0.002 5.6×6.5 4.88×2.9 5.61×4.38.9×2.4 5.5×55 9.77×0.02 1.384×5.18.78×83 2.6×61 0.059×0.2 4.268×1.757×5.7 9.46×2.85 17.8×6.4 1.5×4.92.5×0.88 5.555×5.2 2.22×3.33 7.658×8五年级上册小数乘除法计算商是循环小数的横式答案用简写方法记录，除不尽保留2位85.44÷16 42.84÷7 101.7÷9 67.5÷15230.4÷6 21.24÷36 0.736÷23 43.5÷1235.21÷7 39.6÷24 6.21÷0.03 210÷1.451.3÷0.27 91.2÷3.8 0.756÷0.18 0.66÷0.311.97÷1.5 69.6÷2.9 38.4÷0.8 15÷0.0五小数乘除法计算题（三商是循环小数的横式答案用简写方法记录，除不尽保留2位小数）8.2÷0.12 0.8÷0.9 76.4÷5.4 4.7÷31.25÷1.2 32÷42 14.36÷2.7 8.33÷6.21.7÷0.032.41÷0.7 0.396÷1.2 0.756÷0.3615.6×13 0.18×15 0.025×14 3.06×360.04×0.12 3.84×2.6 5.76×3 7.15×2290.75÷3.3 3.68×0.25 16.9÷0.13 1.55÷3.9 小数乘除法计算题（四）商是循环小数的横式答案用简写方法记录，除不尽保留2位）3.7×0.016 13.76×0.8 5.2×0.6 8.4×1.36.4×0.5 4.48×0.4 5.25×5 35.4×4.20.042×0.54 0.76×0.32 0.25×0.046 2.52×3.41.08×25 0.12×0.5×0.16＝ 4.8×0.25 0.125×1.42.5÷0.7 10.1÷3.3 10.75÷12.5 3.25×9.04 五年级上册数学递等式计算题（一）脱式计算（能简算的要简算）2.5×7.1×4 16.12×99＋16.12 5.2×0.9＋0.9 7.28×99+7.284.3×50×0.2 64－2.64×0.5 26×15.7＋15.7×24 (2.275 ＋0.625)×0.283.94+34.3×0.2 1.2×(9.6÷2.4)÷4.8 8.9×1.1×4.7 2.7×5.4×3.93.6×9.85-5.46 8.05×3.4+7.6 6.58×4.5×0.9 2.8×0.5+1.5832＋4.9－0.9 4.8－4.8×0.5 (1.25－0.125)×8 4.8×100.156.5×99＋56.5 7.09×10.8－0.8×7.09 4.85 + 0.35 ÷ 1.4 8.7 × 17.4 - 8.7 × 7.412.5×0.4×2.5×8 0.87×3.16+4.64 9.5×101 0.68 ÷（5.2 -3.5）× 1.25五年级上册数学递等式计算题（二）脱式计算（能简算的要简算）4.4×0.8－3.4×0.8 (9.37+9．37+9．37+9．37)× 2．5 2.37×6.3+2.37×3.72.5×1.25×0.323.8×10.1 2.5×(3.8×0.04) 7.69×1013.8×10.1 0.25×39+0.25 0.125×72 46×0.33+54×0.33(8×5.27) ×1.25 6.81+6.81×99 0.25×185×40 6.8×0.75÷0.53.75÷0.125–2.75 1.53+23.4÷7.2 9.5×99 13.5×0.9840.5 ÷ 0.81 × 0.18 4.8 ×（15 ÷ 2.4） 6.81+6.81×99 0.25×185×40 用竖式计算 0.396÷1.2= 0.756÷0.36= 15.6×13= 5.76×3＝0.18×15= 0.025×14= 3.06×36= 0.04×0.12＝ 3.84×2.6≈ （保留一位小数）7.15×22 90.75÷3.3 3.68×0.2516.9÷0.13 1.55÷3.9 3.7×0.01613.76×0.8= 5.2×0.6 8.4×1.36.4×0.5 4.48×0.4 5.25×535.4×4.2 0.042×0.54 0.76×0.320.25×0.046 2.52×3.4 1.08×250.12×0.5×0.16＝ 4.8×0.25＝ 0.125×1.4≈（保留两位小数）2.5÷0.7= （保留三位小数） 10.1÷3.3= （商用循环小数）10.75÷12.5= （用乘法验算） 3.25×9.04= （用除法验算）3、脱式计算（能简算的要简算）2.5×7.1×4 16.12×99＋16.125.2×0.9＋0.9 7.28×99+7.28 4.3×50×0.2 64－2.64×0.526×15.7＋15.7×24 (2.275 ＋0.625)×0.28 3.94+34.3×0.21.2×(9.6÷2.4)÷4.8 8.9×1.1×4.7 2.7×5.4×3.9 3.6×9.85-5.468.05×3.4+7.6 6.58×4.5×0.9 2.8×0.5+1.58 32＋4.9－0.9 4.8－4.8×0.5 (1.25－0.125)×8 4.8×100.1 56.5×99＋56.5 7.09×10.8－0.8×7.09 4.85 + 0.35 ÷ 1.4 8.7 × 17.4 - 8.7 × 7.412.5×0.4×2.5×8 0.87×3.16+4.64 9.5×101 0.68 ÷（5.2 -3.5）× 1.2540.5 ÷ 0.81 × 0.18 4.8 ×（15 ÷ 2.4） 2.13×0×82576.81+6.81×99 0.25×185×40 4.4×0.8－3.4×0.8(9.37+9．37+9．37+9．37)× 2．5 4．2.×1.＋1.×1.752.37×6.3+2.37×3.7 2.5×1.25×0.32 3.8×10.12.5×(3.8×0.04) 7.69×101 3.8×10.10.25×39+0.25 0.125×72 46×0.33+54×0.33(8×5.27) ×1.25 6.81+6.81×99 0.25×185×406.8×0.75÷0.5 3.75÷0.125–2.75 1.53+23.4÷7.29.5×99 13.5×0.98 12.5×8.8二、解方程：54-X=24 7X=49 126÷X=4213+A=28.5 2.4X=26.4 7.5x－3x=185×1.3-2x=5.5 24x+6x=63.6 5.6x+4.4x=5.2三、列式计算1、20减去0.8的差除以4个0.3的和，商是多少？2、一个数的2.6倍加上9，和是35，求这个数。

四年级上小数点乘除练习题题目：四年级上小数点乘除练习题1.小数点乘法练习题：1) 0.3 × 0.2 =2) 0.6 × 0.5 =3) 0.8 × 0.4 =4) 0.25 × 0.1 =5) 0.07 × 0.9 =2.小数点除法练习题：1) 0.4 ÷ 0.2 =2) 0.6 ÷ 0.3 =3) 0.8 ÷ 0.8 =4) 0.25 ÷ 0.1 =5) 0.63 ÷ 0.9 =解答：1. 小数点乘法练习题：1) 0.3 × 0.2 = 0.062) 0.6 × 0.5 = 0.33) 0.8 × 0.4 = 0.324) 0.25 × 0.1 = 0.0255) 0.07 × 0.9 = 0.0632. 小数点除法练习题：1) 0.4 ÷ 0.2 = 22) 0.6 ÷ 0.3 = 23) 0.8 ÷ 0.8 = 14) 0.25 ÷ 0.1 = 2.55) 0.63 ÷ 0.9 = 0.7以上是四年级上的小数点乘除练习题。

小数点的乘除法是数学中的一项重要内容，掌握好这一知识点对于学生的数学学习至关重要。

通过这些乘除练习题，可以帮助同学们巩固对小数点乘除法的理解，提高计算的准确性和效率。

在小数点的乘法中，首先需要把小数点对齐，然后按照整数的乘法规则进行计算，最后确定小数点的位置。

例如，当我们计算0.3 × 0.2时，先把小数点对齐得到0.3和0.2，然后进行乘法运算得到0.06，最后确定小数点位置，结果为0.06。

小数点的除法和乘法类似，同样需要对齐小数点，按照整数的除法规则进行计算，最后确定小数点的位置。

例如，当我们计算0.4 ÷ 0.2时，先把小数点对齐得到0.4和0.2，然后进行除法运算得到2，最后确定小数点位置，结果为2。

小数的乘除练习题1. 乘法练习题(1) 计算：0.5 × 3.2 = ？(2) 计算：1.8 × 0.4 = ？(3) 计算：2.75 × 0.2 = ？(4) 计算：0.06 × 4.5 = ？(5) 计算：0.3 × 0.25 = ？2. 除法练习题(1) 计算：2.4 ÷ 0.6 = ？(2) 计算：3.6 ÷ 0.4 = ？(3) 计算：5.25 ÷ 0.5 = ？(4) 计算：1.2 ÷ 0.8 = ？(5) 计算：0.45 ÷ 0.15 = ？3. 解答(1) 0.5 × 3.2 = 1.6(2) 1.8 × 0.4 = 0.72(3) 2.75 × 0.2 = 0.55(4) 0.06 × 4.5 = 0.27(5) 0.3 × 0.25 = 0.075(1) 2.4 ÷ 0.6 = 4(2) 3.6 ÷ 0.4 = 9(3) 5.25 ÷ 0.5 = 10.5(4) 1.2 ÷ 0.8 = 1.5(5) 0.45 ÷ 0.15 = 3通过以上练习题，我们可以巩固小数的乘除运算。

在进行小数乘法时，我们需要注意小数点的位置，将除数和被除数对齐，按照乘法规则进行计算。

同样，小数的除法也需要对齐小数点，然后进行除法运算。

掌握小数的乘除运算可以帮助我们更好地理解小数的概念，并在实际生活中运用。

写完整文章后，需要检查语句通顺，表达流畅，确保没有影响阅读体验的问题。

同时，排版要整洁美观，使读者易于阅读和理解。

完成这些步骤后，我们就可以得到一篇符合要求的小数的乘除练习题文章。

新人教版四年级下册小数的乘除法练习题
乘法练题
1. 计算：0.6 × 0.4 =
2. 0.15 和 0.3 相乘等于多少？
3. 一本书的价格是5.8元，小明买了3本相同的书，他一共花了多少钱？
4. 小明家有5个花盆，每个花盆里有0.25升的水，一共有多少升水？
5. 某种蔬菜在农场里的面积是2.5平方米，如果将农场的面积扩大10倍，那么扩大后面积是多少平方米？
除法练题
1. 小明有6个糖果，他想平均分给他的3个朋友，每个人分到几个糖果？
2. 一个饭店一天共卖出32份饭菜，如果每份饭菜的单价是4.8元，那么一天总共收入多少元？
3. 一件货物的总价是9.6元，如果每个人要平均分摊，而且分摊到最接近的整数，每个人需要付多少钱？
4. 小明参加了一个马拉松比赛，他一共跑了8.4公里，如果他要分成3段每段跑相同的距离，每段跑多少公里？
5. 一块地的面积是12.6平方米，如果把它划分成3个相等的部分，每个部分的面积是多少平方米？
希望以上练习题能够帮助你巩固小数的乘除法知识。

完成练习后，你可以通过计算器或老师的帮助来核对答案，加强自己的学习效果。

加油！。

2.81×8.8= 2.14×6.7= 4.62×7.9= 8.35×7.5=二、小数乘以一位数1.74×3= 9.02×4= 6.4×2= 5.2×5=三、小数乘以两位数8.7×12= 0.6×12= 0.5×41= 3.61×23=四、一位小数乘以一位小数9.6×5.4= 2.1×6.7= 4.2×1.6= 6.3×2.4=五、两位小数乘以两位小数9.59×4.94= 5.42×4.35= 8.23×8.49= 5.67×0.9=0.429×1.13= 0.219×6.79= 0.964×2.5= 0.945×0.35=七、小数除以一位整数7.2÷2= 19.8÷6= 13.53÷3= 64.4÷7=八、小数除以两位整数79.9÷47= 73.8÷41= 2.3÷23= 75.2÷47=九、小数除以小数5.28÷1.6= 13.32÷1.8= 11.6÷2.9= 10.8÷2.7=2.38×8.7= 6.43×3.8= 2.52×4.4= 8.51×3.8=二、小数乘以一位数1.48×3= 6.4×5= 8.89×3= 3.81×3=三、小数乘以两位数7.3×20= 4.07×48= 6.8×35= 3.04×17=四、一位小数乘以一位小数5.6×2.8= 4.2×9.5= 5.1×5.8= 2.3×7.8=五、两位小数乘以两位小数3.74×6.98= 2.28×1.44= 0.34×4.32= 8.82×0.78=0.064×7.39= 0.206×3.67= 0.752×5.17= 0.603×4.93=七、小数除以一位整数22.5÷6= 30.88÷4= 42.42÷6= 50.47÷7=八、小数除以两位整数3.2÷32= 13.8÷46= 32.8÷41= 28.5÷38=九、小数除以小数1.02÷0.3= 28.48÷3.2= 18.9÷2.1= 11.16÷1.8=3.77×8.7= 6.73×3.3= 5.6×9.8= 3.98×3.1=二、小数乘以一位数4.3×3=5.46×3= 3.5×2= 2.48×6=三、小数乘以两位数1.7×46= 3.1×24= 8.7×39=2.4×27=四、一位小数乘以一位小数8.6×1.3= 9.6×4.6= 0.5×7.6= 1.2×4.8=五、两位小数乘以两位小数5.45×7.63= 8.53×6.6= 0.52×6.76= 0.08×2.3=0.229×7.29= 0.698×8.33= 0.423×8.82= 0.149×1.95=七、小数除以一位整数9.56÷2= 22.56÷6= 31.2÷6= 22.32÷4=八、小数除以两位整数17.6÷44= 24.5÷49= 1.8÷12= 59.5÷35=九、小数除以小数5.7÷1.9= 22.32÷2.4= 10.64÷1.4= 13.52÷2.6=0.05×7.9= 6.74×7.4= 8.7×9.4= 4.83×6.4=二、小数乘以一位数0.21×3= 4.46×5= 5.75×3= 8.77×3=三、小数乘以两位数5.8×47= 2.02×23= 4.63×14= 5.7×40=四、一位小数乘以一位小数4.7×6.6= 8.2×2.5= 6.2×7.7= 4.7×7.7=五、两位小数乘以两位小数2.87×5.53= 8.66×7.56= 8.55×1.56= 6.14×4.51=0.331×6.39= 0.906×6.01= 0.023×0.47= 0.941×1.25=七、小数除以一位整数60.4÷8= 20.4÷4= 53.6÷8= 32.24÷4=八、小数除以两位整数19.74÷21= 28.08÷36= 15.68÷28= 39.2÷28=九、小数除以小数13.44÷2.8= 12.6÷1.4= 15.6÷2.6= 6.8÷1.7=3.22×8.1= 2.41×3.7= 2.92×4.6= 4.73×5.7=二、小数乘以一位数8.7×8= 6.52×6= 6.5×3= 9.8×6=三、小数乘以两位数0.5×18= 0.25×19= 4.2×24= 7.8×13=四、一位小数乘以一位小数3.1×9.6= 1.4×3.7= 6.5×4.6= 0.2×3.2=五、两位小数乘以两位小数8.24×3.48= 9.89×4.28= 8.22×6.25= 6.61×3.11=0.889×6.34= 0.064×1.15= 0.973×2.64= 0.82×8.63=七、小数除以一位整数14.1÷3= 32.8÷4= 16.86÷3= 19.2÷3=八、小数除以两位整数29.4÷42= 57.81÷47= 3.24÷36= 44.8÷28=九、小数除以小数12.96÷2.4= 2.75÷0.5= 9.8÷1.4= 9.9÷1.1=7.57×4.6= 3.66×3.6= 9.3×1.4= 8.33×0.7=二、小数乘以一位数5.48×8=6.6×2=7.03×2=8.8×2=三、小数乘以两位数2.6×37= 7.5×19= 7.97×46= 6.3×40=四、一位小数乘以一位小数5.3×8.5= 1.4×0.3= 3.6×5.4= 2.2×4.6=五、两位小数乘以两位小数4.95×6.18= 3.39×2.82= 3.5×8.69= 8.09×8.5=0.134×1.51= 0.419×2.59= 0.204×7.53= 0.143×8.18=七、小数除以一位整数36.75÷5= 20.75÷5= 29.6÷8= 24.96÷4=八、小数除以两位整数44.8÷32= 62.9÷37= 40.7÷37= 28.56÷28=九、小数除以小数8.84÷2.6= 1.8÷0.3= 21.6÷3.6= 6.8÷1.7=3.42×8.1= 1.68×0.2= 6.17×0.5= 8.85×3.9=二、小数乘以一位数6.19×7= 2.8×4= 6.3×6= 4.15×5=三、小数乘以两位数2.7×11= 1.22×49= 2.78×36= 1.13×28=四、一位小数乘以一位小数0.6×1.2= 1.4×5.2= 5.6×2.9= 1.6×7.9=五、两位小数乘以两位小数6.78×7.59= 1.04×2.38= 0.42×8.46= 5.04×3.31=0.731×8.16= 0.204×1.86= 0.16×6.95= 0.225×1.11=七、小数除以一位整数70.2÷9= 44.8÷7= 18.18÷2= 51.6÷6=八、小数除以两位整数11.4÷19= 43.4÷31= 20.3÷29= 9.6÷24=九、小数除以小数19.2÷2.4= 10.32÷2.4= 7.56÷1.2= 17.68÷2.6=8.31×3.2= 8.1×9.3= 6.42×3.2= 0.41×3.5=二、小数乘以一位数5.92×6= 4.95×3= 8.2×2= 3.18×3=三、小数乘以两位数7.2×10= 4.3×22= 2.05×21= 7.2×20=四、一位小数乘以一位小数4.8×3.3= 4.3×5.1= 3.6×5.3= 3.4×1.5=五、两位小数乘以两位小数3.12×1.88= 0.52×3.66= 3.87×6.77= 2.07×5.56=0.341×4.41= 0.524×3.28= 0.556×7.44= 0.454×8.58=七、小数除以一位整数15.6÷6= 49.5÷9= 51.1÷7= 31.8÷6=八、小数除以两位整数24.7÷13= 37.4÷22= 22.05÷35= 12.46÷14=九、小数除以小数3.56÷0.4= 7.02÷1.8= 3.15÷0.7= 9.9÷1.1=7.06×2.8= 6.59×6.7= 2.47×6.2= 8.76×4.5=二、小数乘以一位数2.7×5= 9.54×8= 7.34×5= 8.7×6=三、小数乘以两位数6.26×44= 6.2×22=7.4×11= 3.71×27=四、一位小数乘以一位小数4.5×4.2=5.7×8.1= 2.7×6.6= 8.8×9.8=五、两位小数乘以两位小数7.71×6.27= 4.5×8.47= 7.1×6.02= 1.53×7.11=0.965×4.46= 0.082×5.39= 0.671×2.02= 0.853×2.37=七、小数除以一位整数74.48÷8= 16.5÷3= 57.92÷8= 43.8÷6=八、小数除以两位整数20.8÷16= 13.8÷46= 33.83÷17= 5.89÷19=九、小数除以小数12.15÷2.7= 4.32÷1.2= 18.9÷2.7= 0.99÷0.3=4.58×3.7= 3.61×5.4= 0.39×1.8= 4.7×8.7=二、小数乘以一位数1.55×7= 4.61×3= 5.8×3= 5.95×7=三、小数乘以两位数7.46×46= 8.56×26= 7.53×38= 7.9×38=四、一位小数乘以一位小数7.5×6.4= 9.3×3.9= 6.3×4.4= 2.3×0.3=五、两位小数乘以两位小数7.91×2.42= 3.79×5.57= 1.31×8.75= 5.27×8.84=0.027×2.68= 0.266×6.34= 0.704×3.09= 0.554×5.53=七、小数除以一位整数53.28÷8= 20.72÷4= 28.5÷3= 20.88÷4=八、小数除以两位整数22.8÷19= 79.9÷47= 40.8÷24= 35.2÷22=九、小数除以小数13.86÷2.1= 13.8÷2.3= 2.94÷0.6= 20.7÷2.3=7.8×5.2= 9.94×8.6= 2.97×1.4= 1.76×6.7=二、小数乘以一位数4.75×3= 2.5×9= 4.3×7= 8.36×5=三、小数乘以两位数8.63×36= 8.79×27= 3.47×35= 3.7×28=四、一位小数乘以一位小数5.2×6.1= 4.6×8.8= 2.6×0.5= 8.6×5.8=五、两位小数乘以两位小数3.44×9.99= 1.25×1.45= 7.28×4.9= 1.03×6.71=0.246×9.92= 0.824×2.78= 0.499×8.02= 0.829×3.06=七、小数除以一位整数30.25÷5= 31.5÷7= 39.6÷9= 15.2÷4=八、小数除以两位整数47.6÷28= 19.68÷16= 17.1÷19= 16.8÷16=九、小数除以小数31.92÷3.8= 17.5÷2.5= 5.72÷1.3= 10.58÷2.3=9.05×2.2= 7.44×8.1= 7.99×5.3= 3.39×6.9=二、小数乘以一位数4.3×9= 0.6×8= 7.35×3= 3.4×3=三、小数乘以两位数2.9×26= 8.8×31= 8.3×13= 1.89×29=四、一位小数乘以一位小数8.6×3.6= 2.7×0.5= 9.2×3.6= 7.8×9.9=五、两位小数乘以两位小数8.98×2.17= 4.75×7.1= 6.82×2.36= 8.5×5.15=0.267×5.19= 0.117×4.26= 0.162×1.53= 0.908×2.32=七、小数除以一位整数11.9÷5= 50.82÷7= 58.1÷7= 51.92÷8=八、小数除以两位整数43.4÷31= 93.1÷49= 20.3÷29= 49.84÷28=九、小数除以小数29.76÷3.1= 14.7÷3.5= 14.4÷2.4= 11.84÷3.2=6.17×2.8= 2.79×5.9= 0.71×7.2= 6.81×3.1=二、小数乘以一位数8.78×9= 7.81×8= 1.4×4= 2.81×6=三、小数乘以两位数2.2×43= 4.44×35= 8.5×46= 1.6×31=四、一位小数乘以一位小数9.3×2.5= 3.2×8.5= 2.1×4.7= 6.9×8.4=五、两位小数乘以两位小数3.02×9.3= 2.26×1.43= 7.54×4.2= 8.1×0.47=0.014×5.21= 0.256×0.56= 0.676×2.87= 0.426×4.53=七、小数除以一位整数31.5÷7= 17.7÷3= 25.2÷7= 48.3÷7=八、小数除以两位整数38.72÷32= 38.4÷32= 29.9÷23= 22.8÷38=九、小数除以小数11.7÷1.5= 5.2÷1.3= 3.42÷0.6= 9.43÷2.3=6.49×5.4= 1.45×6.6= 4.58×9.8= 4.39×4.2=二、小数乘以一位数2.3×6= 2.88×3= 1.52×4=3.41×9=三、小数乘以两位数6.6×20= 4.7×20= 1.5×37= 0.1×42=四、一位小数乘以一位小数1.3×3.9= 8.5×1.3= 3.3×5.9= 6.4×2.5=五、两位小数乘以两位小数7.46×8.27= 7.33×7.99= 9.26×3.34= 4.79×2.24=0.225×2.81= 0.687×7.15= 0.214×7.71= 0.238×8.67=七、小数除以一位整数59.85÷7= 44.7÷6= 42.56÷8= 24.4÷4=八、小数除以两位整数42.5÷25= 14.8÷37= 32.9÷47= 23.4÷39=九、小数除以小数26.1÷2.9= 10.56÷1.6= 7.02÷1.8= 1.46÷0.2=3.68×7.8= 9.64×8.3= 6.88×7.6= 2.16×0.4=二、小数乘以一位数5.93×3= 1.84×3= 7.8×8=6.5×6=三、小数乘以两位数6.3×49= 1.5×44= 1.8×28= 2.65×14=四、一位小数乘以一位小数4.2×8.4= 7.3×7.7= 1.2×8.3= 6.1×6.7=五、两位小数乘以两位小数4.69×9.03= 0.53×3.53=5.78×5.54= 3.22×8.66=0.995×2.4= 0.03×1.1= 0.967×8.87= 0.924×2.12=七、小数除以一位整数32.4÷9= 26.96÷4= 61.39÷7= 9.9÷3=八、小数除以两位整数47.6÷28= 19.6÷28= 46.5÷31= 20.8÷16=九、小数除以小数14.4÷1.6= 12.5÷2.5= 2.1÷0.3= 28.05÷3.3=。