五年级上册小数乘法口算题

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五年级(上册)《小数乘法》(全套)课时练习试题

五年级(上册)《小数乘法》(全套)课时练习试题

第一单元小数乘法(小数乘整数1)一、填一填。

1.、2.5+2.5+2.5=()×()。

4.8×4=()+()+()+()。

2.、0.57×6的积是()位小数。

3.把15.6的小数点去掉后,原来的数就扩大到它的()倍。

4.、0.52扩大()倍是52。

86缩小为原来的()是0.086。

5、2.45×16可以转化成245×16,计算后把所得的积缩小到它的()。

6、一本《成语接龙》14.8元,买2本应付()元。

二、火眼金睛判一判。

(对的打“√”,错的打“×”)1、一个因数扩大10倍,另一个因数不变,积也扩大10倍。

()2、7.35×4的积是一位小数。

()3、5.47×6可以转化成547×6,积的大小不变。

()4、4.8×3表示3个4.8的和是多少,也表示4.8的3倍是多少。

()5、2.5×5与5×2.5的结果相同,读法也相同。

()小数乘整数(2)1、我会口算。

0.8×4= 2.5×100=0.06×7=0.5×100= 1.3×5= 4.2×3=2、根据28×15=420,我能很快写出下面各题的积。

280×15= 2.8×15= 0.28×15=28×150= 0.28×150= 0.028×15=3、竖式计算我能行。

0.32×6= 4.5×18= 32.5×12=4、列式计算我最棒。

(1)50个6.5是多少?(2)15.4的3倍是多少?(3)12个3.5连加的和是多少?四、解决问题做一做。

1、甜瓜每千克3.2元,奶奶爱吃甜瓜,冬冬为奶奶买了5千克,需要多少钱?2、数学书封面长18.5厘米,宽13厘米,它的面积是多少平方厘米?专业知识分享专业知识分享 小数乘小数一、填一填。

人教版五年级上册口算题卡

人教版五年级上册口算题卡

人教版五年级上册口算题卡一、小数乘法部分1. 题目:0.5×0.3 =解析:计算小数乘法时,先按照整数乘法的方法计算,5×3 = 15。

然后看因数中一共有两位小数,就从积的右边起数出两位点上小数点,所以结果是0.15。

2. 题目:1.2×0.4 =解析:先算12×4 = 48,因数共有两位小数,从积的右边起数两位点上小数点,得到0.48。

3. 题目:0.6×0.8 =解析:6×8 = 48,因数中一共有两位小数,结果为0.48。

二、小数除法部分1. 题目:0.6÷0.3 =解析:根据商不变的性质,把被除数和除数同时扩大10倍,变成6÷3 = 2。

2. 题目:1.2÷0.4 =解析:同样将被除数和除数同时扩大10倍,变为12÷4 = 3。

3. 题目:0.8÷0.2 =解析:被除数和除数同时扩大10倍得8÷2 = 4。

三、简易方程部分(用字母表示数相关的简单计算)1. 题目:如果a = 3,那么2a+5 =解析:把a = 3代入式子2a+5中,得到2×3+5 = 6 + 5 = 11。

2. 题目:当x = 4时,3x 2 =解析:将x = 4代入式子3x 2,3×4 2 = 12 2 = 10。

四、多边形的面积部分(简单的边长与面积计算相关口算)1. 题目:一个平行四边形的底是5厘米,高是3厘米,它的面积是多少平方厘米?解析:平行四边形的面积 = 底×高,即5×3 = 15平方厘米。

2. 题目:三角形的底是4厘米,高是2厘米,面积是多少平方厘米?解析:三角形面积 = 底×高÷2,4×2÷2 = 4平方厘米。

五年级小数乘除法口算练习题(5篇范文)

五年级小数乘除法口算练习题(5篇范文)

五年级小数乘除法口算练习题(5篇范文)第一篇:五年级小数乘除法口算练习题小数乘除法口算练习1.5×4=2.5×4=0.13× 4=5.4÷10=0.18×0.3=4.2×1000=0.45÷0.15=3.6÷0.1=8.5×100=8.5÷ 1.7=3.2÷100=1.2÷0.3 =0.49÷7=0.04×25=0.096÷0.03=84÷4.2= 1000×0.756= 0.5×100= 0÷0.25= 1÷0.01=1.25×8=3.8×2=7.2÷0.9=9.3÷0.3= 4÷0.4= 0.45÷0.5= 0.2÷0.01= 0.92.1×0.3=7×0.08=1.87×0=0.2×0.5= 60×0.5= 0.05×1.6=0.5×1.1=0.8×0.5=1.25×4= 4×0.25= 0.4÷8= 1.8×0.5= 8÷0.5= 0.32÷16=2.5÷10= 6.3÷2.1= 0.924= 80÷1.6= 6.2+1.7= 0.56÷14= 1.66.3÷9= 0.15×8= 7.2÷0.6= 4.2÷1.4=3.9÷3.9= 0÷6.81= 1.47×0.4= 0.4×0.25=0.8×7= 1.5×7= 1.32×8=0.7×8=10.3×2=5×0.6=3.21×23= 3.21×2.3=32.1×2.3=32.1×0.23= 3.21×0.23=321×0.023=0.9×0.3=3.5×0.2=2.01×0=10×0.05=0.13×7=0.21×100=0.7×4=0.05×4=4×0.3=12.5×8= 2.3×4= 3.25×0=0.4×50=30×0.1=2.6×3=4.1×2=0.35×0.2=7.5×0.1=0.9×0.3=1×0.06=9×0.5=1.25×8=1-0.73=0.6×8=2.05×100=0.04×0.3=0.4×0.25=1.25×8=1.6×5= 0.9+1.4=0.2×0.4=8.2+1.8=100-35.22=2.5×0.4=2.4×5=0.22×4=0.9-0.52= 3.99×1=0×3.52=1.6×0.2=×6=0.24×5= 6÷0.12= ÷÷0.8=7.2÷6=4.4÷4=3.6÷3=5.2÷2=1.5×3=1.2×0.4=3.6÷3=2.7÷3=0.12÷3=0.45÷9=3.6÷6=2.7÷2=1.2÷3 =0.45÷4=2.5÷5=8.4÷7=0.34÷17=2.5÷0.5=8.4÷0.7=0.34÷0.17=30.4÷4=1.2×6=0.72÷0.6=2.6÷1.3=0.6×0.3=0÷3.65=7.82÷1 =1.4÷0.7=3.6÷0.06=5.6÷0.9=0.48÷0.8=4.4÷0.11=4.2×3 =0.3÷0.01=40.9÷0.45=9.63÷4=8.13.6+6.3=0.051-0.08= 3.53.9+0.39=4.86.4÷4﹦ 1.52.5×2= 0.5×10= 0.6×8= 2.1×2=2.8×10= 0.7×0.8= 0.04×20= 5.6+0.4=4.7+2.3= 4.5×2= 6.9-2.5= 7.2×0.8= 6×3.4= 0.62-0.32= 1.4×0.5= 0.75×100=0.02×0.5= 3.6×0.3= 0.75÷0.25= 0.125×8=4.8÷0.3= 0.86÷2=0.56÷28= 0.36÷0.4= 0.64÷0.8= 0.7×9=3.6÷24= 0.8×1.1= 7.2+12.8= 46.7-12.8÷4=5.2÷13=12.5÷5= 1.64+4.1=10÷20= 3.08×0.01= 4.95×1000= 6.9×0.1= 0.4×0.5=2.4÷0.8= 10.8÷9= 9.6÷0.8= 0.108÷2=4.95÷0.9= 9.65÷0.1= 0.325×100= 2.5×8=0.56÷0.7= 0.125×4= 3.28×0.1= 3.9÷0.7.2×0.1= 0.01×0.1= 0.25×0.4= 1.6÷0.8=1÷2.5= 1.25×0.8= 3.2÷0.04= 0÷1.7=0.22×102= 9.6÷0.8= 5×0.24= 4.5-3.9÷0.13 16.5÷0.5= 5×0.12= 24×0.5=4.8×0.5= 2.8+7.8÷0.01= 5.4÷0.6= 3.2÷5= 7×0.62=0.56÷0.8= 7.4- 2.8= 0.18÷0.2= 0.16÷8=4.5×0.02= 8+7.2= 1.2×30= 0.012×0.2=7.3×0.3= 0÷6= 3.6÷0.12= 7.8÷0.6=2÷5= 4.510.5×0.4= 7.3+0.27= 8×0.125= 0.54÷0.6=0.61+0.39= 0.56÷28= 10÷20= 4.08÷0.4= ÷0.5=5.1÷0.17=÷16=1÷0.01 =÷9=2.5×4=×4=3.5×0=×0.01=1.25÷0.25=+5.2=0.5×0.4 =÷0.3﹦4.2×3﹦6.3÷7= 5.6×100=3.8= 24÷15= 8.65×10= 0.35×0.6=13=0.05= 4.2= 0.84÷2.1= 5÷0.25=+5= 0.3÷0.6= 0.96÷0.2=10-9.4= 0.8×0.11= 7.2+12.8= 5.6÷0.01= 2.3×100= 0.75×100= 0.108÷2= 10.8÷9= 7.8÷0.01= 5.4÷0.6= 3÷5= 7×0.62= 12÷0.5= 5.2×0.4= 12.2÷0.2= 5.6÷100= 0.41+3.7= 0.02×0.5= 7.2-0.8= 1.4×0.5= 84÷0.21= 0.75÷0.25= 2.5×16= 0.108÷2= 1.75+32.5= 16-5.07= 5.2÷13= 1.64÷41= 1.02×0.2= 0.26×0.3= 8.4×0.02= 1.2×6= 0.8×0.05= 12.6÷0.03= 8.71÷0.1= 21÷0.21= 0.8×0.13= 0.34÷17= 8.08÷0.4= 0.5×2.2= 1.24×4= 3.27+0.63= 5.02×0.3= 0.3×0.5= 5.6÷7= 72÷ 7.2= 0.7÷0.35=0.7÷1.40.48÷0.04= 1.25÷2.5= 5.5+5.5= 16.8÷8=0.54+2.2= 3.51.5×0.6= 0.32÷0.8= 12.25÷0.5= 73.5×0.46.5+52.5= 0.45×102= 1.25×88= 2.64+8×1.25= 7÷3.5= 4.2÷0.7÷6= 0.4×8.6×25=0.27÷0.3= 2.5×101= 0.65×101-0.65= 2.6×7÷2.6×7=0.02×0.5= 3.6×0.3= 6.3÷7= 5.6×100=7.8÷0.01= 5.4÷0.6= 1.5×0.6= 0.32÷0.8= 12.25÷0.5= 73.5×0.1=2.5×2= 0.5×10= 0.6×8= 2.1×2=0.61+0.39= 0.56÷28= 10÷20= 4.08÷0.4= 1.2×0.3 = 6.6÷1.1 = 4.9÷7= 0÷0.48=-0.05= 2÷0.02= 0.25×40= 1=3.85+1.54=3.2÷5= 7×0.62=第二篇:五年级上册数学小数乘除法口算练习题小数乘除法口算练习班级姓名1.5×4=2.5×4= 0.13× 4= 5.4÷10= 0.18×0.3= 4.2×1000=3.2÷100= 84÷4.2= 1.25×8= 4÷0.4= 7×0.08= 1.870.05×1.6= 0.54×0.25= 0.42.5÷10= 6.30.56÷14= 1.64.2÷1.4= 3.9 0.45÷0.15= 1.2÷0.3 = 1000×0.756= 3.8×2= 0.45÷0.5= ×0= 0.24×1.1= 0.8÷8= 1.8÷2.1= 0.92÷0.8= 6.3÷3.9= 03.6÷0.1= 0.49÷7= 0 0.5×100= 7.2÷0.9= 0.2÷0.01= 0.9×5= 0.2×0.5= 6×0.5= 8÷4= 80÷9= 0.15÷6.81= 8.5×100=.04×25= 0÷0.25= 1.6×0.2= ×6= 2.1×0.5= 60÷0.12= 1.25÷0.5= 0.32÷1.6= 6.2×8= 7.21.47×0.4= 0.48.5÷ 1.7= 0.096÷0.03= 1÷0.01= 9.3÷0.3= ×0.3= ×0.5= ×4= ÷16= +1.7= ÷0.6= ×0.25=第三篇:五年级上册数学小数乘除法口算练习题/ 1小数乘除法口算练习姓名1.5×4=2.5×4= 0.13× 4= 5.4÷10= 0.18×0.3= 4.2×1000=3.2÷100= 84÷4.2= 1.25×8= 4÷0.4= 7×0.08= 1.870.05×1.6= 0.54×0.25= 0.42.5÷10= 6.30.56÷14= 1.60.45÷0.15= 1.2÷0.3 = 1000×0.756= 3.8×2= 0.45÷0.5= ×0= 0.24×1.1= 0.8÷8= 1.8÷2.1= 0.92÷0.8= 6.33.6÷0.1= 0.49÷7= 0 0.5×100= 7.2÷0.9= 0.2÷0.01= 0.9×5= 0.2×0.5= 6×0.5= 8÷4= 80÷9= 0.158.5×100=.04×25= 0÷0.25= 1.6×0.2= ×6= 2.1×0.5= 60÷0.12= 1.25÷0.5= 0.32÷1.6= 6.2×8= 7.28.5÷ 1.7= 0.096÷0.03= 1÷0.01= 9.3÷0.3= ×0.3= ×0.5= ×4= ÷16= +1.7= ÷0.6=第四篇:五年级数学小数除法口算练习2.4÷0.85.4÷100.45÷0.153.6÷0.13.2÷1008.5÷ 1.71.2÷0.30.49÷0.7 0.096÷0.0384÷4.20÷0.251÷0.017.2÷0.99.3÷0.34÷0.40.45÷0.5 0.2÷0.011.4÷0.51.55÷0.53.15÷0.71.86÷0.21.04÷0.80.38÷0.11.36÷0.2 1.16÷0.40.12÷0.60.27÷0.90.48÷0.28.73÷0.90.72÷0.30.46÷0.10.22÷0.2 3.45÷0.54.62÷0.61.92÷0.40.9÷0.5.11÷0.70.35÷0.13.92÷0.84.32÷0.9 0.24÷0.83.15÷0.70.98÷0.71.8÷0.61.76÷0.42.64÷0.47.56÷0.90.125÷5 0.24÷0.20.4÷0.010.57÷190.7÷0.010.9÷0.010.9÷0.15 0.96÷0.03 0.96÷0.3 0.96÷31.08÷0.41.1÷0.51.28÷3.21.47÷0.7 1.55÷3.9 1.84÷0.2 1÷0.5 10.1÷3.310.75÷1.25 10÷2.510÷25100÷1.2512.3÷0.03 2.4÷0.22.4÷2 12÷0.3120÷0.24123÷1.23128÷0.415.4÷0.4 15÷0.0615÷1.516.2÷0.06 19.6÷219.6÷419.76÷5.22.17÷0.72.7÷7.52.87÷0.720.8÷0.221÷1.43.2÷0.043.2÷1.624÷0.2424÷2.436÷0.636÷3.639÷0.0034.2÷0.14.8÷0.64.8÷64÷0.841.8÷0.2492÷0.45.05÷0.55.2÷0.55.22÷0.29 5.98÷0.23 54.5÷0.9 54÷0.126.3÷217.5÷27.5÷57.56÷0.367.8÷0.038.4÷0.84 8.4÷4.28.6÷0.0028.6÷0.439.6÷0.39.6÷0.6 = 9.6÷3.29.6÷30.48÷64.6÷2314×0.56.8÷45.2÷1312.5÷50.12×58÷0.56.3÷2.10.92÷46÷1.20.4÷884÷0.040.49÷0.76.3÷3.196÷0.61.8×0.50.05×4 013.2÷633.5÷52.5×40.13× 45.4÷100.18×0.38.5÷ 1.73.2÷1001.2÷0.30.49÷70.5×1000÷0.251÷0.011.25×84÷0.40.45÷0.50.2÷0.01 0.9×60.2×0.5 60×0.50.05×1.6 0.5×1.10.4÷8 1.8×0.5 8÷0.5 0.32÷166.2+1.7 0.56÷14 1.6÷0.8 6.3÷9 1.2×50.7×0.01 2.5×0.4 1.25×8 2.5÷0.5 6.45÷0.01 0.36÷0.03 0.08÷0.01 0.75÷0.52.6÷2 9.6÷4.8 1.5÷216.9×0.3 2.37+6.3 2.37+3.72.5×1.25 2.3×0.15 4.39×10 0.1×4.39 0.7×23 13.95÷3.113÷4133÷.0.715.1÷0.05 ÷0.13 16÷1.618.63÷0.03 18.72÷3.6 2.2÷0.112.5÷0.52.5÷0.72.7÷4 22.8÷3246.4÷13 25.8÷626÷0.13 81÷796÷1.232÷0.436÷0.18 4.2÷3.5329÷64.5÷0.05 4.6÷0.023 42÷0.345÷0.546÷0.2348÷0.6 5.4÷65.5÷0.555.6÷77.4÷0.02 6.6÷0.03 6.6÷0.66 64.32÷1665÷0.05 7÷0.2572.8÷0.878÷0.0678÷0.6 8.6÷28.8÷2.28÷1081÷0.039.8÷0.79÷0.590.75÷3.31.2÷30.72÷120.7×1.10.72÷49.6÷60.32÷160.5×1.10.5+0.141.25×4 7.6-3.8 6.8÷1.70.56÷142.4÷0.61.55÷0.50.35÷0.0736÷1.24.8÷33.6÷180.54÷2.71.5×40.16×5 4.2×1000 0.45÷0.153.6÷0.18.5×100 0.04×25 0.096÷0.0384÷4.21000×0.756 3.8×2 7.2÷0.97×0.08 1.87×0 0.245÷5 0.8×0.5 6÷0.12 1.25×44×0.25 2.5÷106.3÷2.1 0.92÷4 80÷1.6 0.15×87.2÷0.66.6×0.61.78×2 5.37×5 9.6×0.63.9×7 53×2 0.01÷0.2 7.5÷2.58.8÷2.2 0.96÷6 2.4÷2 6.4—4 0.6÷355×3 4.4×25 2.64×5 3.8×10.1 0.98×0.7 0.47×0.7 0.7×0.57 1.21×30.78×516.9= 5.3×4.2= 5.24×0.99= 10.65×0.22= 1×0.125= 0.125×11= 12 ×0.03= 3 ×0.121= 8.6 × 0.7= 7.6 ×16.73×2.5 8.53×0.99 18= 1.4 × 15=五年级数学上册口算题卡小数乘法计算(2)0.1 ×0.2= 3.57 × 5= 4.2 × 0.1= 99 ×0.35= 0.05 ×0.8= 1.23 × 3= 0.36 ×12= 1.7×5 5.8×0.29 5.8×2.9 8.6×18 1.42× 7.3×0.43= 1.2 × 0.4= 7.5 × 2.5 × 4= 0.4 ×1.3= 5.43 × 0.86= 0.85 ×1.01= 5.29 ×2.3= 0.1 × 0.01= 0.28 ×35= 4.68 ×1.25= 25.7 ×3.29= 6.71 × 25.7= 6.5 ×56.5= 1 × 0.85= 4.73 × 3.9= 47.3 ×39= 47.3 ×0.39= 0.473 × 0.39= 2.4 × 5= 1 ×1.25= 0.45 × 0.09= 6.2 ×0.03= 9 ×0.18= 0.25 × 16= 0.125 ×0.125= 0.7 × 8= 9.9 × 2.5 × 4= 3.05 × 4= 6.8 ×2= 1.05 × 0.1= 4.2 ×21= 5.64 —2.1= 1.25 × 80= 17.5 × 7.5 × 2= 0.77 ×1.1= 1.2 —0.08=五年级数学上册口算题卡小数的加减乘除法混合运算(6)0.5 -0.35 ÷ 0.7 = 0.7 -0.09 ÷ 0.3 =0.8 -0.2 ÷ 0.4 = 7 -0.35 ÷ 0.5 =6.3 ÷ 0.9 - 0.6 =0.18 ÷ 0.2 - 0.3 =5.4 ÷ 0.9 - 0.2 =2 ÷ 0.4 - 0.4 =1.5 ÷ 0.3 - 0.4 =0.42 ÷ 0.6 - 0.4 =0.9 -0.42 ÷ 0.6 = 0.2 -0.08 ÷ 0.4 =0.4 ÷ 0.5 - 0.2 =1.6 ÷ 0.2 - 0.6 =0.42 ÷ 0.7 - 0.2 = 8 -0.06 ÷ 0.3 =0.5 -0.12 ÷ 0.3 = 0.4 -0.12 ÷ 0.6 =0.9 -0.12 ÷ 0.2 = 5 -0.25 ÷ 0.5 =-0.1 ÷ 0.5 = 8 - 0.32 ÷ 0.4 =-0.12 ÷ 0.3 = 0.4 -0.04 ÷ 0.2 = 6.43 - 1.43 + 2.33 = 7.64 - 2.64 + 13.3 =×(3.5 + 1.5)=(0.5 +4.3)× 0.2 =五年级数学上册口算题卡小数的加减乘除法混合运算(7)0.08 × 0.125 × 0.8 =0.5 × 0.2 × 0.2 =8.31 - 0.49 - 7.31 = 7.01 + 6.3 - 0.31 =7.63 - 4.54 - 0.46 = 8.51 - 4.51 + 6.57 =5.32 - 1.32 +6.83 =0.02 × 0.5 × 0.2 =8.64 - 2.64 + 2.24 =2 × 0.3 +2 × 2.2 =5.01 + 0.4 - 0.08 = 72.2 - 32.2 - 0.4 =7.13 - 6.38 - 0.62 = 5.43 - 1.43 + 31.2 =0.04 × 0.25 × 0.5 =5 × 0.2 × 0.2 =8.15 - 0.61 - 2.15 = 7.65 - 1.65 + 76.2 =0.04 × 0.25 × 0.8 = 61.2 - 0.7 - 59.3 =8.55 - 7.62 - 0.38 = 4.21 - 1.21 + 4.73 =(3.5 +2.3)× 0.2 = 65.8 - 3.3 - 36.7 =0.2 × 0.005 × 0.9 =0.2 × 0.005 × 0.2 =4.53 - 0.07 - 0.93 = 7.93 -5.93 - 0.36 =五年级数学上册口算题卡小数的加减乘除法混合运算(8)4.3 × 0.3 + 4 =1.6 × 0.5 + 6 =2 × 3.5+3= 4.7 × 0.2 + 2 =6 × 0.9 + 8.8 =5 × 0.7 +5.4 =2.2 × 0.2 + 6 =9 × 0.8 + 8.2 = 1 +0.8 × 1.1 =3.4 × 0.3 + 3 = 7 +0.7 × 1.5 =7.7 × 0.5 + 8 =6.8 × 0.3 + 5 = 6 +0.9 ×7.5 =5 × 0.8 + 4.4 =+0.9 × 5.1 =3 × 0.9 + 1.4 =5 × 0.9 + 4.6 =9.4 × 0.1 + 7 =8.7 × 0.5 + 1 =4 × 0.8 + 7.4 =4.6 × 0.3 + 1 =1 × 0.6 + 3.2 =3.5 × 0.3 + 7 =+0.7 × 4.7 =2.1 × 0.4 + 2 =3 × 0.7 + 1.6 =+0.7 × 8.3 = 2 +0.6 × 8.5 =4.7 × 0.4 + 7 =3.5 × 0.3 + 4 =2.8 × 0.2 + 6 = 5 +0.8 × 3.1 =+0.7 × 5.1 =4.4 × 0.3 + 4 =6 × 0.7 + 8.4 =+0.9 × 3.5 =2.5 ×4+0.125= 1.25 × 8-0.5= 10 ÷4+0.5= 10 ×0.12-0.12= 0.36 ÷ 0.3+1.8=五年级数学上册口算题卡五年级数学口算综合一3.4 -1.4= 7.82 -7.2= 2.19 + 9.1= 10.1 -0.89= 0.68 +0.42= 8.1 -5.1= 0.728 -0.24= 0.8 +0.18= 0.89 - 0.25= 1 -0.98= 0.048 +0.52= 5×400= 19.9+11.1= 187÷1000= 1+3.89= 0.081×10=75÷10=0.96÷0.8= 0.8×7=1.5×7=1.32×8=0.7×8=10.3×2=5×0.6=0.9×0.3=3.5×0.2=2.01×0=10×0.05=0.13×7=0.21×100=0.7×4=0.05×4=4×0.3=430-250= 0.17+0.06= 1.02-0.09= 7200÷800= 0.17+0.6=0.83-0.6= 17×300= 0.98-0.09= 0.2+0.78= 600×700= 10.2+0.02= 0.15+0.7=五年级数学上册口算题卡五年级数学口算综合二670+250= 0.2+0.2= 9.2-6= 8500÷500= 3.2-3.2= 3.7+2.3= 25×100= 3.2-0.32= 2+2.8= 380-290= 0.35+0.5= 0.35+0.63= 3500÷70= 3.1+3= 3.8+0.38= 7500÷250= 3.8+1= 0.95-0.05= 450+780= 3.1+0.3= 3+0.3= 630÷9= 4.5-0.4= 9.5-5= 330×9= 9.53-1.53= 9.5-0.5= 3.5+2.4= 1-0.95= 0.3+0.27= 0.47+0.13= 4.5+4= 4-0.6= 0.95+0.05= 2.5+3.2= 0.74+0.16= 23×100= 9.8-4.8= 480÷40=0.53÷100= 5.1+2.3= 125×80= 0.078÷10= 0.52+0.4= 70×12=五年级数学上册口算题卡五年级数学口算综合三0.25×100= 3.4-2.8= 0.6-0.37= 0.052×10= 10+0.08= 1-0.75= 0.5×1000= 7.82+0.3= 13.5+6.5= 3.05×100= 1.2-0.8= 21.6-12.6= 63÷100= 0.83-0.5= 0.76+0.14= 80÷1000= 2.7+0.4= 0.72-0.43= 30×100= 0.92-0.2= 3.5+4.8= 3.5+2.4= 5+0.07= 1-0.61= 0.47+0.23= 0.25+0.75= 3.7+0.33= 0.51+0.33= 1-0.6= 1.2+3.6= 0.175 +0.0225= 8 ×0.125= 5.6 + 3.8= 0.62 -0.32= 0.02 ×0.5= 0.75 ÷ 0.25= 16.8 ÷4= 0.04 ×2.5= 0.25 × 8= 5.9 -2.5= 0.1 +0.01= 0.125 × 8= 3.08×0.01=4.95×1000= 6.9×0.1=第五篇:小数乘除法教案doc一、小数扩大或缩小规律:1)在乘法里,一个因数不变,另外一个因数扩大(或缩小)a倍,积也扩大(或缩小)____倍。

(word完整版)五年级上册数学小数乘法练习题(多组)

(word完整版)五年级上册数学小数乘法练习题(多组)

小学数学五年级上册第一单元小数乘法练习(一)一、口算。

1.2×3= 4.2×8= 1.7×9= 0.12×4=0.11×3= 1.5×4= 5.6×0= 2.4×3=1.25×3= 1.5×5= 8.5+2.5= 6.5×3=1.02×0.2= 0.45×0.6= 0.8×0.125= 0.759×0=0.25×0.4 = 0.067×0.1= 0.1×0.08= 0.85×0.4=二、在下面各式的积中点上小数点。

0 . 5 8 6 . 2 5 2 . 0 4× 4. 2 × 0 . 1 8 × 2 81 1 6 5 0 0 0 1 6 3 22 3 2 6 2 5 4 0 82 43 6 1 1 2 5 0 5 7 1 2三、判断,把不对的改正过来。

0.024 0.013× 0.14 × 0.02696 7824 260.036 0.000338四、根据1056×27=28512,写出下面各题的积。

105.6×2.7= 10.56×0.27= 0.1056×27= 1.056×0.27=五、先判断积里应该有几位小数,再竖式计算。

3.7×4.6= 0.82×0.06= 6.5×4.8=(验算)六、填一填。

把1.2的小数点去掉,它的值就扩大()倍;把0.019的小数点去掉,这个数就扩大()倍。

七、列式计算。

3.05的7.3倍是多少?八、判断。

(1)小数一定比整数大。

……………………………………………………()(2)两个因数的小数位数的和是3,积的小数位数也一定是3。

…………()小数乘法练习(二)1、用简便方法计算下面各题,并说明运用了什么运算定律。

五年级小数乘除法口算1000道

五年级小数乘除法口算1000道

五年级小数乘除法天天练日期: 班级: 姓名:姓名:用时:用时:得分:39.5÷5= 6.4×3= 0.1×0.7= 5.5×0.2= 4.32÷0.8= 63.7÷7= 75.6÷9=9.9×4= 2.76÷0.4=1.44÷0.9=9.4×4=6.3÷3=58.2÷6=0.6×5=3.9÷3= 3.6×4= 3.7×9= 7.7×4= 22.5÷3= 3.1×3=1.8÷3=19.2÷3=4.9÷0.7=0.4÷0.5=1.1×0.9=1.2÷0.3=4.8×0.6=7.7×6=28÷5=4.4×8=6.8×0.7=1.8÷0.5=1.5×0.2=8.9×5=21÷6=8.9×0.5=5.3×8=5.81÷0.7=8.4×5=3.7÷0.5=9.2÷2=3.3×0.4=55.8÷6=42.3÷9=0.78÷0.6=33.3÷9=3.7×2=6.5×3=41.6÷8=44.8÷8=1.6×0.5=0.36÷0.9=8.9×0.3=1.8×3=15÷3=27.6÷4=6.58÷0.7=1.9×5=2.07÷0.9=56.7÷7=日期: 班级: 姓名:姓名:用时:用时:得分:2.3÷0.5=1.04÷0.8= 4÷0.5=7×9=1.38÷0.2=2.2÷2=30.6÷6=9.7×6=4.6×0.7= 53.6÷8= 55.3÷7= 5.52÷0.6= 4.8÷4= 17.6÷2= 7.3×6= 1.92÷0.2= 0.44÷0.2=6.23÷0.7= 0.4×0.9= 46.2÷6=5.1×2=1.3×0.3=4.62÷0.7=5.4×0.3=3.5×8=8.4×4=5.6×0.5=1.02÷0.3=6.1×6=1.3×5=4.3×0.8=0.6×9=16.2÷9=3.2÷4=1.8÷0.3=3.15÷0.9=30÷4=8.9×0.5=4.14÷0.6=5.94÷0.9=66.6÷9=64.8÷9=4.4×0.3=1.98÷0.2=9×0.6=7.6×0.3=1.26÷0.9=4.5×0.8=0.88÷0.8=26.4÷8=7.8×0.9=35.2÷8=8.2×3=7.3×0.9=11.6÷4=40÷8=0.4×7=13.5÷5=3.2×8=36.6÷6=日期: 班级: 姓名:姓名:用时:用时:得分:1.8×0.4=3.85÷0.7= 5.6×5=0.36÷0.6=8.5×2=2.1×0.4=7.7×3=4.68÷0.9=1.2÷0.8=0.95÷0.5=1.3×7=10.8÷9=7.2×8= 14.5÷5= 22.2÷3=0.3×0.9=1.9×0.2= 13÷5= 38÷4=2.52÷0.6=0.6×8=1×0.6=5.9×0.2=2.9÷0.5=6.5×0.5=6.7×3=35÷5=25.9÷7=9.8×4=51.8÷7=3.3÷3=5.2÷0.8=9.1×3=4.3×4=4.5×4=6.5×4=5×0.6=71.2÷8=9.9×3=2.7×5=8.8×0.5=5.4÷6=4.2÷0.6=2.1÷3=0.2×0.2=3.87÷0.9=0.4×6=3.72÷0.6=7.1×7=3.1×0.6=58.4÷8=8.6×0.3=1.5×8=4.3×0.7=26÷4=1.54÷0.2=7.4×0.4=2.55÷0.3=8.1×9=20.7÷9=日期: 班级: 姓名:姓名:用时:用时:得分:1.9×0.6=3.36÷0.4= 3.3×7=6.2×0.2=3.4×0.6=2.8×9=4.7×0.8=1.62÷0.9=7.9×5= 2.15÷0.5= 8.5×0.3= 39.2÷8= 38.7÷9= 2.6×0.2= 48.6÷9= 8.1×0.7= 5×0.9=8.6×5= 1.29÷0.3= 5.9×0.4= 8.9×0.7=6.4÷0.8=1.84÷0.4=71.1÷9=2.45÷0.5=5.1÷3=0.9×4=52.5÷7=24.3÷3=7.92÷0.9=44.8÷7=57.6÷6=0.9×3=6.5×0.7=4.7×8=8.8×0.2=3.52÷0.4=2.4÷8=6.1×0.6=59.5÷7=3.4×0.7=4.8×8=3.9÷0.6=8.8÷8=2×0.5=2.88÷0.8=2.2×0.7=6.6÷3=78.4÷8=3.36÷0.8=3.2÷8=79.2÷9=61.6÷8=2.28÷0.4=3÷2=0.6×0.7=1.2×0.8=8.3×0.7=4×0.5=9.1÷7=日期: 班级: 姓名:姓名:用时:用时:得分:2×0.9=4.9×7=5.6×0.7=0.72÷0.3=0.8×0.5=6.6×8=3.8×0.2=24.6÷3=32.4÷4= 3.48÷0.4=1.88÷0.4=2.48÷0.4=5.2×0.8= 1.1×0.3= 1.89÷0.9= 6×2= 5.6×0.8=2.04÷0.6=4.5÷0.6=5.4×5= 9.8×0.6=87.3÷9=3.75÷0.5=1.95÷0.5=9.9×6=7.9×6=9.3×9=5.7×0.3=4×0.6=2.5×5=43.2÷8=20.4÷4=7.7×0.4=8.82÷0.9=0.2×0.6=3.9×0.2=12÷2=32.4÷9=41.5÷5=3.3×0.9=4×3=8.4×8=3.3×4=60÷8=5.9×4=7.3×5=0.69÷0.3=38.5÷5=1.98÷0.9=4.65÷0.5=24÷6=3.65÷0.5=4.2÷6=5.52÷0.8=6.7×8=9.6÷6=5.9×0.3=1×9=5.4×0.2=7.4×0.5=日期: 班级: 姓名:姓名:用时:用时:得分:9.3×0.9=1.12÷0.4= 44.5÷5=6.4×2=48÷8=2.9×3=4.2×2=43.8÷6=5.7×2= 2.48÷0.8= 4.5×0.6=0.9×0.9=1.56÷0.4= 3.4×0.8= 26.1÷3= 3.96÷0.6= 15.4÷7=7.8÷6= 1.5÷0.2= 8.5×0.9=2.9×6=8.19÷0.9=0.1×7=9.9×0.4=0.98÷0.2=14.8÷2=0.1×6=5.7×0.9=4.2÷7=1.5×7=3.9×5=1.7×9=5.3×5=20.7÷3=8÷5=0.42÷0.2=0.18÷0.3=3.12÷0.6=4.5×0.3=2.8×0.3=8.3×0.3=5.8×4=24.5÷7=2.5×8=8.1×0.8=1.1×8=5.2×3=4.3×8=0.5×9=5.5÷5=8.5×8=9.6×0.4=6.4×0.9=0.1×4=2.34÷0.9=9.3×4=56.7÷9=16.8÷7=32.9÷7=3.9×9=日期: 班级: 姓名:姓名:用时:用时:得分:7.6÷0.8=2.9×0.8= 6×0.5=4.3÷0.5=0.54÷0.9=5.8÷2=52.8÷6=23.2÷4=5.9×6=6.7×6= 6.48÷0.8= 5.3×2= 5.04÷0.8= 4.8×6= 1.14÷0.6= 1.4÷0.2= 1.7×8=39.6÷9= 1.36÷0.2= 7.1×0.3=38.4÷6=43.2÷9=1.62÷0.2=0.63÷0.3=5.7×0.9=4.2×9=9.9×2=18.2÷2=9.6×9=9.8×0.7=4.72÷0.8=6×0.7=43.5÷5=29.4÷3=0.6×0.4=3.6×6=0.81÷0.3=4.14÷0.9=0.72÷0.6=0.3×5=67.5÷9=6.1×0.8=1.6×6=0.16÷0.2=4.6×7=5.4÷0.6=2.61÷0.9=16÷8=1.4×0.7=2.12÷0.4=4.7×0.4=1.3×0.7=8.1×0.4=3.9×0.4=1.5÷0.6=1.2×0.5=4.05÷0.5=3.6×2=1.72÷0.4=2.2×6=日期: 班级: 姓名:姓名:用时:用时:得分:1.2÷4=47÷5= 77.6÷8=4.9×0.5=15.8÷2=3×0.4=3.43÷0.7=3÷0.5=26.6÷7= 5.28÷0.6= 1.2÷0.5= 30.5÷5= 1.96÷0.7= 0.56÷0.4= 2.6×9= 5.1÷0.6= 21.6÷9=9.3×0.3= 6.9×0.2= 3.5×0.3= 1.6×0.4=6.6×3=37.1÷7=7.2×0.3=6.8×4=47.7÷9=3.01÷0.7=3.4×2=6.7×2=2.37÷0.3=3.2×0.3=2.28÷0.6=0.8×4=0.8×7=12÷5=1.15÷0.5=3.1×0.8=1.33÷0.7=4.15÷0.5=44÷5=4.56÷0.8=0.1×2=73.8÷9=7.1×5=3.7×0.5=2.94÷0.7=2.24÷0.8=2.3×0.5=1.9×0.4=10÷2=8.7×0.6=4.5×3=11.2÷2=0.2×0.8=9.9×0.3=17÷5=0.24÷0.4=9.6×0.3=1×5=1.1×0.6=日期: 班级: 姓名:姓名:用时:用时:得分:0.2×0.9=8.8×7= 19.2÷8=0.96÷0.2=29.6÷4=0.5×0.2=2.34÷0.3=4.7×6=1×0.5= 2.4÷0.4= 0.96÷0.3= 7.6×0.7= 41.3÷7= 17.4÷2= 8.6×0.5= 1.26÷0.6= 7.9×9=0.2×3= 48.5÷5= 9.9×5=5.3×6=54÷6=3.9×7=1.1×5=27.9÷9=6÷2=1.7×0.5=2.76÷0.6=69.3÷9=68.6÷7=1.12÷0.8=0.3×9=3.1×0.9=7.2×7=9.4×0.6=21÷7=9.3×8=5÷5=6.93÷0.7=7.2÷2=7.8×0.7=7.1×6=0.9×0.2=9.7×5=24÷8=3.4×0.4=1.53÷0.9=16.5÷5=20.8÷4=4.06÷0.7=8.73÷0.9=22.4÷4=4.7×2=8.4×2=5.49÷0.9=0.7×0.9=7.9×2=38.4÷4=2.1×0.2=9.4×9=日期: 班级: 姓名:姓名:用时:用时:得分:0.7×0.6=9.1×0.9= 6.4×0.8=2.9×8=2.5×2=6.9×0.4=1.66÷0.2=22.2÷6=3.6×0.6=0.6÷6=1.4÷0.7=1.9÷0.5=2.58÷0.3= 0.3×4= 18.2÷7=3.8×6= 7.6×8=5.6÷7= 5.9×7= 8.8×3=1.2×6=25.5÷5=6×7=21.6÷3=0.76÷0.2=3.5×0.8=35.7÷7=3.4×8=1.8×0.6=0.6×3=6.48÷0.9=8.3×2=18.4÷2=5.8×6=2.1×0.9=4.77÷0.9=16.6÷2=4.8×7=4.3×0.2=5.04÷0.6=46.2÷7=0.66÷0.2=5.5×5=21.5÷5=8.2×0.5=5×9=0.7×0.7=46.4÷8=45.5÷5=11.5÷5=5.1×0.4=13.2÷2=8.8×4=28.2÷3=26.1÷9=4.6÷2=49.5÷9=1.7×0.2=1.92÷0.3=25.2÷7=日期: 班级: 姓名:姓名:用时:用时:得分:47÷5=3.7×6= 0.72÷0.8=3.7×0.2=0.8×5=19.8÷3=2×0.2=7×7=42÷6= 0.34÷0.2= 9×7= 8.6×0.9= 18.9÷3= 2.9×2= 1.47÷0.3=6.3×9=7.7×9= 23.4÷6= 7.6×9= 4.4×0.5=31.8÷6=37.8÷6=5.16÷0.6=7.6×4=7.9×0.9=1.6×9=38.4÷8=1.4×2=77.4÷9=8.4×0.8=1.7×0.6=4.4×7=8.5×4=6.24÷0.8=3.3×0.3=5.88÷0.6=6÷3=6.7×0.7=1.44÷0.3=7.04÷0.8=20.3÷7=6.6×7=0.3÷0.3=0.3×0.7=8.6×2=5.3×4=6.5×0.9=8.1×7=6×5=7.8÷3=0.84÷0.7=7.5×5=45.6÷6=1.35÷0.5=2.59÷0.7=0.21÷0.3=0.1×0.6=6.5×7=5.67÷0.7=7.4×0.3=日期: 班级: 姓名:姓名:用时:用时:得分:6.44÷0.7=7.3×0.3= 9.7×0.2=0.72÷0.9=9.6×0.2=0.2×0.5=8.1×5=8.2×4=10.5÷3= 7.6×0.4= 27÷9= 9.4×8= 52.2÷9= 2.9×0.9= 6.5×0.3= 6.8×0.2= 1.2×0.6=36÷4= 6.7×0.2= 1.64÷0.4= 5.7×0.2=6.1×3=20.1÷3=9.1×0.5=1.3×0.6=16.8÷8=4.92÷0.6=5.1×0.8=3.08÷0.4=0.2÷0.5=1.6÷8=9.9×0.7=29.7÷3=3×3=1.89÷0.3=2.8÷2=1.9×9=1.5÷0.3=5.9×0.9=20.5÷5=1.6×7=53.2÷7=6.9÷3=5.64÷0.6=1.86÷0.2=1.1×0.2=6.4×9=4.3×7=8.7×0.5=0.22÷0.2=1.5×2=1.06÷0.2=1.2×0.2=9×0.8=31÷5=2.3×3=23.4÷3=11.1÷3=7.2×0.2=35.1÷9=日期: 班级: 姓名:姓名:用时:用时:得分:2.8×0.2=1×3= 47.6÷7=6.2×0.3=0.7×5=8.6×0.4=5.1×0.3=3.12÷0.4=3.1÷0.5= 1.28÷0.8= 8.4×0.6= 3.4×6= 8.2×0.7= 6.8×2= 12.8÷2= 6.6×0.4= 3.7×3=7.2÷8= 22.5÷5= 4.45÷0.5=15.2÷2=9.7×3=5.1×6=6.6÷2=8.3×0.2=1.08÷0.4=5.04÷0.7=4.8×4=3.57÷0.7=33.5÷5=8.1×0.5=1.5×5=3.5÷0.7=7.4×2=5.3×0.8=75.2÷8=3.2×0.2=28.5÷5=7.68÷0.8=0.8×0.2=7.5×8=2.25÷0.9=0.57÷0.3=44.1÷9=1.54÷0.7=50.4÷9=0.2×5=44.4÷6=10.2÷6=3.15÷0.5=2.3×0.3=5.85÷0.9=1.9×0.9=5.22÷0.9=6.9×0.3=36.4÷7=1.8×0.3=22.8÷6=56.4÷6=11.2÷4=日期: 班级: 姓名:姓名:用时:用时:得分:0.91÷0.7=3.4×0.3= 7.83÷0.9=2.67÷0.3=4.9×9=15.3÷3=1.82÷0.2=4.5×7=7.8÷3= 3.8×0.3= 58.8÷7= 0.4÷0.2= 4.4×0.9= 6.16÷0.7= 2.16÷0.8= 2.6×6= 2.1÷0.3=1.12÷0.2= 3.55÷0.5= 41.4÷9= 0.8×0.4=5.3×0.3=51÷6=4.1×0.9=30.4÷8=6.8×0.8=7.3×0.7=36.4÷4=2.6÷0.5=4.97÷0.7=5.8×3=6.9×0.5=9.4×0.2=32.4÷6=8.5×7=1.68÷0.7=0.87÷0.3=6÷5=3.1×8=2.07÷0.3=6.57÷0.9=7.2×6=5.6÷4=6×0.3=8.3×6=6.6×0.5=28.2÷6=2.87÷0.7=3.6÷0.6=2.3×0.9=6.2×0.6=6.3×0.7=8.3×3=3×7=1.44÷0.8=16.5÷3=2.3×0.7=2.5×0.3=0.27÷0.9=2.3×7=日期: 班级: 姓名:姓名:用时:用时:得分:6.1×8=2.7×9= 0.06÷0.6=3.1×7=1.3×2=2.95÷0.5=21.6÷8=7.9×0.2=1.9÷0.2= 65.7÷9=2.5×9= 65.8÷7=3.8×9= 15÷2= 2.1×3= 2.3×9= 6.6×0.2=14÷2= 6.2×7= 9.3×5= 3.88÷0.4=4×0.4=3.6×0.2=0.26÷0.2=7.1×4=0.4×0.4=2.9×4=0.28÷0.4=8.9×8=5.76÷0.8=58.8÷6=4.1×3=1.56÷0.6=5.2×4=3.1×0.3=3.2×9=3.8×2=2.31÷0.3=6.5×0.8=2.3×2=2.5×0.4=9.3÷3=84.6÷9=1.56÷0.3=0.02÷0.2=3.5×3=8×0.6=5.1×5=3×6=2.8×4=5.6×4=1.7×0.8=4.7×0.3=9.5×0.3=4.83÷0.7=9.8×0.8=3.04÷0.8=4×5=6.8×3=1.44÷0.2=日期: 班级: 姓名:姓名:用时:用时:得分:11.7÷9=4.4÷4=5.7×0.8=8.2×5=72÷8=5.6×3=1.8÷9=1.7×0.3=26.4÷3= 5.9×8= 4.48÷0.8= 8.4÷2= 0.6×7= 8.2×0.6= 6.5×6= 28.8÷9= 7×0.8=72÷8= 2.72÷0.4= 2.3×0.2=0.7×3=4.2×0.4=7.8×0.5=7.1×0.4=5.3×7=63÷7=0.36÷0.2=3.3÷0.6=2.68÷0.4=6.3÷0.7=23.4÷9=0.21÷0.7=9×4=5.94÷0.6=14÷5=6÷0.8=4.95÷0.9=37.2÷4=4.6×0.3=6.4×0.7=8.5×0.8=9.7×4=3.84÷0.8=1.1÷0.2=6.6÷6=6.3÷9=3.5÷5=7.9×0.7=0.1×8=2.7×0.4=0.8÷4=0.4×0.2=1.6×0.9=3.8×5=5.8×0.8=2.4÷0.8=6×0.8=1.1×0.4=2.7÷0.6=7.3×2=日期: 班级: 姓名:姓名:用时:用时:得分:0.42÷0.6=0.4×0.3= 8.8×0.3=3.76÷0.8=4.4×4=1.65÷0.3=8.5×0.5=3.1×9=3÷0.6= 0.5×0.6= 6.65÷0.7= 0.3×2= 8×0.2= 0.45÷0.5= 61.6÷7= 7.6×6= 0.9÷0.9=2×4= 6.88÷0.8= 5.5×0.8= 6.8×0.5=7.5×4=0.7×0.2=5.2×0.2=3.3×8=18.8÷4=57.6÷8=7.4×0.6=15.6÷4=1.4×0.5=29.6÷8=1.18÷0.2=7.9×0.6=67.9÷7=6.7×0.3=1.2×9=1.6÷0.2=0.62÷0.2=44÷8=5.7×0.6=55.8÷9=0.6×4=15.6÷3=13.3÷7=0.52÷0.2=。

五年级小数乘除法口算及竖式计划1000题

五年级小数乘除法口算及竖式计划1000题

第一部分:小数乘法口算1.直接写得数.0.5×1.4=80×0.125= 2.5×0.4=0.036×100= 0.24×5=0.12×0.5=35÷1000= 2.2×0.5= 0.12×5=0.04×0.1= 3.5+0.15=8﹣6.9=2.口算.0.4×5= 1.2×4=4×1.5=1×0.5=0.01×0.1= 1.25×0.4=0.36×0.2=0.8×0=3.直接写出得数.0.12×6= 1.25×0.4=30×0.8=12.5×0.8=3.26×0= 3.25+0.74= 5.2﹣2.64=0.24×5=3.9+7.1= 6.2×0.5=0.25×0.4=0.036×100= 4.直接写出得数.0.4×0.02= 1.8×0.4=6×0.25= 1.25×0.8=3﹣0.98=0.9÷0.01= 3.9×0.01=99×0.25=5.直接写得数:0.5×3=0.45+0.4=4×0.25=10.2+11.3=0.09×100=8.7﹣0.5=0.96﹣0.7=12.9﹣2.9=3.69×0= 38.7×10= 2.35×10= 1.25×0.8= 6.直接写得数:0.2×3=0.45+0.4=4×0.25=18.7+11.3=0.09×100=8.7﹣0.5=0.96﹣0.7=18﹣1.67=1×8.79= 3.69×0=38.7÷10=2÷100=7.直接写出得数.0.28×10=0.9×5=8×0.06=0.05×1.6= 100×0.7= 2.5×8= 1.06×7=12.5×0= 1.7+3.3×0.2= 0.2×0.2×0.2= 2.8+6.2= 1.235×100= 8.直接写得数:0.2×36=0.45×2=4×0.25= 3.8÷100= 0.09×1000=1﹣0.9=0.96﹣0.7= 2.5×7.4×4=9.口算0.2×0.4=8.2+1.8= 6.45×0.01= 2.5×0.4=0.8×50= 2.4×5=0.9﹣0.52=10.2×4.5= 10.直接写出得数.0.7×0.9=0.14×0.3= 1.7×0.03=0.12×6=5.5×10= 2.6×0.5= 1.8×0.04= 2.6×2﹣0.5=11.直接写出得数.5×1.8=0.8×1.5=0.65+0.35=9.8+1.2=0.25×4=1﹣0.63=10.75﹣0.5= 1.25×80=1.7×0.9= 4.6×0.5= 1.42×100=19.8﹣8= 12.直接写出得数.0.25×4= 1.25×8=8.2×6.9×0=0.2×18=6.29×100=0.02×500= 3.4×2=0.26×0.5= 13.直接写得数0.2×4=0.8×25=0.57+0.43= 2.8×10= 18.4÷100= 2.5×0.4= 4.7﹣1.78=0.125×8= 1.8×0.5= 0.035×1000= 3.8×8= 2.48-0.4=14.口算0.4×20= 1.3×3= 2.3×5= 0.25×50=0.9×300 2.4×50= 6.2×6= 0.125×200= 600×0.4=800×0.25= 3.14×5= 1500×0.2= 15.口算2.3×0.8= 6.9×3= 2.5×400= 9.87-1.8=4.5+6.8=20.6+4.5=12.5×8= 10.2-5.01= 16.直接写得数.3.14×7=52=6π=62﹣20=402﹣302= b×b= 3.14×302= 3.14×42= 1.25×32=b+b= 17.直接写得数.0.16×5= 4.2×0.3=25×0.4=25×0.4=2×0.45=0.5×0.07=0.3×0.7×10= 2.5×0.4= 1.3×5= 8×0.05= 1.3×50= 1.6×1.5=0.7×1.4= 1.25×10= 4.5×0.02= 0.05×430=1.3×4= 1.35×10= 1.4×0.4= 20×0.5= 18.口算题.0.1×208= 2.8×2=3×0.18=0.2×600= 80×0.05=7.26×1=0.4×22=0.15×40=0.03×8=0×1.001=0.8×12.5=0.4×0.7=1.4×5= 1.45×100= 3.5×40=0.02×38= 250×0.04= 1.5×0.02=0.05×12=200×0.05= 250×0.4=7.682×0=2×0.005=2.05×2= 19.直接写出得数.1.5×0.2= 1.25×0.8= 4.5×0.4=2.5×7×0.4= 0.3×0.3=0.35+0.75=0.48+1.62=10.1×78=20.直接写出得数.0.2×8= 6.2+0.04= 3.8×4= 2.5×0.4=0.6×0.7=18.5+71.5= 6.45-0.4= 6.4+4.6=0.04×0.3= 2.1﹣2.01=7.8×3= 1.41×1000= 21.直接写出得数45+426=58.7﹣38.5= 2.25×8= 2.7×0.8= 6.4×0.8=320×0.03=11.004×50= 4.8×9.8= 22.口算.2.4×0.3=0.25×4=3.8×5= 0.06×0.8= 8.5×0.2= 1.25×0.8=12.8×0.8= 7.5×0.5=6×4.4=0.13×0.05=0.2×3.8= 19×0.7= 23.口算:0.9×0.3= 3.5×0.2= 2.1×0= 6.6×10=0.3×7=0.27×3=3×9.6=0.8×1.5=7.2×0.6= 2.5×0.4= 24.口算0.37×10=0.37×100=0.37×1000= 2.5×4= 0.25×4= 4.8×2=0.12×0.3=2×5.8= 0.28×3=0.16×4= 3.5×2=5×1.2= 5×1.5=3×0.25= 3.5×0.2= 3.5×5= 5×0.25=0.3×0.2= 3.5×0.5=3×1.5= 25.直接写得数.0.5×6=0.125×8= 2.5×0.4= 3.1×0.3= 4×0.25= 1.25×6=0.2×0.05=0.8×0.05= 1.7×0.3= 1.25×200=40×0.05=0.04×2=0.2×50= 2.4×0.5=0.25×4= 3.2×0.3=12.5×80=0.17×10= 4.5+3.85= 2.5×0.7×0.4= 3.5×8= 1.2×0.6= 5.2﹣2.8= 3.7+5.8= 27.直接写得数.0.5×0.7= 2.1×0.4= 3.4×0.2=0.06×1.2=0.63×2=0.05×0.06=0.8×0.4=7.85×0.01= 0.15×0.4= 1.3×30=0.25×0.6= 3.125×100= 28.直接写出得数.12.5×8= 2.5×0.4= 6.4+4.6=0.04×0.3= 0.5×2.4=0.2×2.5= 5.18+3.02= 1.41×1000= 29.口算:0.3×4= 2.3×0.2= 3.6+6.4=0.6×0.7=1.6×0.4=0.9×0.08=0.25×4=12.5×8= 0.7×0.9=0.04×0.2=0.8×0.05=3.1×0.3= 0.16×0.5= 1.7×0.03= 1.8×0.04=0.12×6= 30.直接写得数0.8×25=0×4.23=0.57+0.43=0.02×500= 12.5×8=50×0.04=80×0.3= 1.1×9= 31.直接写得数.0.7×10 3.02×100 3.6×2 4×1.52.5×4 12.5×0.8 4.5+2.6 7﹣1.66.4﹣2.3 10+6.01 8.3﹣1.37.3+2.79.5×0.2= 3.2×0.5=0.8×2.5= 4.4×0.4= 4.8×50= 4.8×0.25=8.8×5= 1.4×0.5= 33.口算.0.8×7=0.9×0.3= 1.32×8=10.3×2= 3.5×0.2=10×0.05=0.13×7=0.05×4= 30×0.1=12.5×8= 3.25×0=0.4×50= 34.直接写出得数:2.5×4= 2.4×0.5=35×0.4= 8×0.125= 0.27×3=7﹣6.38=12.5×4= 0.22×0.5= 35.直接写出得数.(后两题得数保留一位小数)0.7×0.9=0.14×0.3= 1.7×0.03= 1.8×0.04≈0.12×6= 5.5×10= 2.6×0.5= 2.6×0.08≈36.直接写出得数0.45×0.2= 4.38+3.5=0.9×7=(3.85+5.45)×0= 0.75×1= 2.5×4= 5.4×20=7.5×0.4=37.口算.2.3×2=10×0.2= 1.45×10= 4.3×10=4.5×0.9= 2.5×8= 3.9×3=5×0.01= 38.直接写得数:2.5×3=3.06×2= 0.25×4= 3.8×26=4.2×10=5.3×100= 2.5×6= 2.5×40= 2.2×4 = 1.6×4= 1.25×8=7.5×6=1.5×8=2.4×5= 1.25×8=3.58×2=1.2×6=0.2×0.9=0.72×5=0.37×4=40.直接写得数0.7×0.9=0.12×50=60×0.5= 1.8×0.04=1.25×8=24×0.05=0.15×0.4=0.9×1.5=3.4×0.7=0.78×0.2=30×0.5=0.8×0.9= 41.口算.0.5×0.2=50×0.2=500×0.2= 2.4×4= 0.25×40=0.125×8=12.5×8= 1.25×80= 42.口算:0.5×2=0.25×4=12.5×8=0.125×8= 7÷0.7=1﹣0.125×8= 1.25×32=0.25×56= 43.直接写出得数.0.4×0.3= 2.5×0.6=8.8×0.1= 1.3×0.2=5.28+1.6=10﹣1.7﹣2.3=6.09×0=100×0.7= 44.直接写出得数0.5×0.2=0.25×0.4=7.3×6= 1.25×8=0×1000+3=0.5÷100= 2.6×4= 0.12×40= 100×0.78=12.78+0.22= 3.8×5= 0.6+0+0.7= 45.直接写得数.0.5×0.2=4×0.15=9.6×0.1= 50×0.4=8×0.125=0.23×10= 1.5×2= 0.12×7=46.直接写出得数.0.7×0.9= 2.6×0.5=0.14×0.3= 5.5×10=1.7×0.03= 1.8×0.04=0.12×6= 4.8×5=7.25×10= 0.12×40= 60×0.2= 3.6×200=47.口算0.2×0.4=8.2+1.8=100﹣35.22= 2.5×0.4= 0.8×50=8×0.24= 3.9×1.3= 2.4×5=0.9﹣0.52=0×3.52=12.5×8= 2.4×0.01=48.直接写得数0.8×0.6= 5.5×3=0.5×0.6=0.125×0.8=0.07×0.9=12.4×0.2= 2.4×5=14×0.01=1.08×2= 0.05×1.6= 13.7×2= 3.5×1.2= 49.口算.0.37×100=0.25×4=0.3×0.2=70×0.12= 18×0.3=0.5×0.6= 3.7×0.2=5×1.2= 7.52+2.48= 13.2-3.8-6.2= 12.8×3.2×0.8= 9×2.8= 50.口算.2.37×10= 1.25×88=0.8×1.2=50×1.2= 1.8×43=3.5×6= 3.72-2.7= 5.32-5.3= 7.65+0.4= 5.3+5.7=0.37-0.3= 1.3-0.08= 1.8×3=0.25×0.8= 3.25×4= 5.3×2.7=第二部分:小数乘法列竖式计算1.列竖式计算.75﹣8.49= 3.72×1.25= 5.04×26=5.94+12.7=0.95×6.7=35.62﹣13.4=2.竖式计算0.64×18=25.8×102=40.7×0.25=13.45×2.6=(保留整数) 4.865×8≈(保留整数)10.23×42≈(保留一位小数)3.竖式计算(前面有*要验算).2.18×3.6*4.23×0.8620.07×1.025 0.6×0.90.57×0.86*0.8×0.314.用竖式计算.8×0.12=(验算) 1.9×3.5=(验算)0.401×0.3=0.45×0.96=0.17×0.71= 2.38×3.6=4.57×1.8 0.125×0.8 3.75×0.242.07×3.6 3.35×1.6.9.37×8.56.列竖式计算:1.8×0.36=35.37+28.63=19.9﹣8.75= 1.06×0.48=18.9+28.65=22.87﹣18.65=7.6×0.82= 3.25×0.31=7.5×0.59=(验算)8.列竖式计算,带*号的要验算.25.78+3.12=13.8×9=*8﹣2.67=*5.73+6.7=9.列竖式计算4.8×17 1.88×25 2.4×0.370.89×5.3.10.列竖式计算.3.8×0.15=4.6×50=8.7×2.04= 13.2×9.8=0.86×0.72=5﹣1.08=11.列竖式计算.(得数保留两位小数)2.375×105 5.16×4.3 0.45×0.206.12.用竖式计算.4.8×0.259.3×1.39.8×0.513.列竖式计算.0.04×0.12 4.25×8.8 3.84×0.25.14.用竖式计算.62.4+7.62= 6.07﹣4.993=8.7×1.4= 1.28×3.5=15.列竖式计算8×0.125 4.23×536.5×4 25×0.12618×1.833.42×2016.列竖式计算.2.3×0.8= 6.9×3.1=9.87×1.8= 24.5×6.820.6×4.5=10.2×5.01=17.列式计算:2.02×2.410.33﹣9.083.88+1.5418.用竖式计算.3.5×7= 8.1×16= 3.27×21= 5.63×36=4.32×7=64×0.07=19.用竖式计算.4.26×7.5= 3.15×1.4=47.5×0.6=5.25×0.24=7.38×2.5=14.24×0.35=8.5×16= 4.15×24=0.32×7= 6.4×9= 2.5×36=0.04×270= 1.25×3= 3.75×6=21.计算并验算.0.04×0.568.04×0.001 4.012×0.30.42×0.080.209×0.15 4.8×0.0015 87.5×2.410.28×0.731.4×3.80.82×2= 3.95×42= 2.073×15=0.78×24= 2.6×61=0.059×0.2= 4.268×1.7=57×5.7= 9.46×2.85=17.8×6.4= 1.5×4.9= 2.5×0.88=23.用竖式计算.1.24×0.8=0.85×1.2=7.05×2.4=12.3×2.4=60.5×400=89.3×7.6=24.竖式计算下面各题(得数保留两位小数)0.46×3.5=0.86×1.4=0.036×2.5=8.4×1.03=25.用竖式计算25﹣12.54= 1.59×2.4=2137÷29=26.直接写出得数.1.5×0.2= 1.25×0.8= 4.5×0.4=2.5×7×0.4= 0.3×0.3=0.35+0.75=0.48+1.62=10.1×78=27.用竖式计算.5.08×0.65=54.68﹣12.8=19.92+420.26 7.02×0.67=28.用竖式计算.4.8×2.5=5.07×0.29=0.32×1.7≈(得数保留一位小数)4.08×6.7≈(得数保留两位小数) 6.03×0.74≈(得数保留两位小数)29.竖式计算(第一、第二道的数保留两位小数)3.52×0.05≈120.44×0.2≈8.25×1.431.竖式计算0.38×0.25 150×0.12 0.87×1.91.28×2.3 2.07×0.24 0.17×1.0532.用竖式计算,前两题要验算.0.65×4.7= 2.06×9.4=0.072×8.5=9.9×0.99=33.列竖式计算.3.2×30= 1.25×4=4.2×15=11.5×108=0.27×0.36= 2.6×3.8=250×0.98= 6.05×1.6=34.列竖式计算.0.54×2.7 2.8×7.4 15.4×0.7 27.5×3.4.35.列竖式计算.27.6×0.45 8.08﹣2.68 5.546+29.380.023×1.8 17.04×0.26 8.35×3.5 5.08×0.25 1.18×3.436.列竖式计算.2.6×0.6 6.7×0.0715.6×1.3 0.81×2.7.37.用竖式计算:(得数保留一位小数)3.65×2.6 0.462÷2.80.627+3.3754.35﹣0.435.38.竖式计算31.5×24.5=0.8×0.56= 4.23×0.028= 0.63×1.05=36×0.56= 2.5×2.05=39.列竖式计算.(1)计算并验算.2.3×0.29= 2.7×1.02=(2)得数保留两位小数.0.45×0.96 6.53×0.75 3.27×0.28(3)得数保留一位小数.10.6×0.2622.45×0.4 6.28×3.240.列竖式计算下面各题并验算:0.34×2.5= 1.5×1.7=0.28×0.39= 4.2×2.4=41.用竖式计算.4.2×0.08= 1.5×6.2= 2.7×8.17= 3.28×6.5 2.9×0.56=(保留两位小数) 6.23×4.2=(保留一位小数)42.列竖式计算.3.4×0.25 6.5×2.4 0.035×0.6 1.25×0.02484×0.25=0.55×64=0.47×5.8= 6.06×0.32=0.075×0.07= 3.7×9.77=44.用竖式计算.5.08×0.65= 80.4×0.35= 19.92+420.26=45.列竖式计算3.2×1.8= 1.05×62= 2.7×0.11=0.12×0.18=0.15×0.12= 2.7×1200=7.6×0.82= 3.5×8.8= 3.25×0.31=0.93×2.02≈(结果精确到百分位) 5.9×3.14≈(结果保留一位小数)47.列竖式计算.1.2×1.36(结果保留两位小数)2.7×0.34(结果保留两位小数)0.74×5.8(结果保留两位小数) 2.6×3.5验算:0.25×0.12验算:48.用竖式计算35.7×5.06≈(得数保留一位小数) 6.928×3.2≈(得数保留两位小数)0.86×7= 3.3×16= 0.48×2.4= 1.7×0.45≈(保留两位小数)18.8×38.2= 48×0.952= 5.68×2.8=50.列竖式计算,带※的验算※0.38×0.25 1.07×2.1 (得数保留两位小数)7.4×2.84(得数保留一位小数) 1.08×9.5 0.75×1.02第三部分:小数除法口算1.直接写出下面各题的得数.4.8÷0.8=7.5﹣4.5=0.75÷15= 3.5×0.4= 10÷0.01=10﹣2.05=0.6×1.5=4÷0.25= 2.直接写出得数.2.1÷0.7=2÷5=1÷0.2=7÷8=0.1÷0.01=0.25×40= 6.5﹣5.6= 1.26÷0.6= 5.3÷0.53= 0.54÷6= 8.4÷0.7= 9.6÷8= 3.直接写得数30.2÷2=0.01÷0.5=0.72÷8= 4.8÷0.06= 6.4+3.6=1÷3=10﹣1.55= 1.25×8= 4.口算.0.9÷0.03=7.2﹣2=0.05×2=0.74×11= 0.25×4÷0.25×4= 3.1÷3.1= 1.32+8﹣1.32+8=7.2÷40= 5.直接写得数.6.3÷0.3= 1.8×0.5=25.1+4.9= 2.5×0.5×4= 6.25﹣0.87+0.13= 0.4×2.7×25= 3.8+5.6= 6.78-5.32= 6.直接写出得数.6.4÷0.2=0.9﹣0.89= 1.07+8.3= 3.6÷10= 100×1.5=8.1+9= 4.5×0.2=11﹣3.9=7.直接写得数.5.6÷0.8=6.82﹣5.2= 2.5×0.04=1﹣0.5+0.5= 9.15÷0.3=17.2÷0.86= 1.8÷0.1=12.5×0.8×0= 8.直接写得数1.4×100=2.80÷10= 2.4÷100=0.33×1000= 90÷6=0.025×100=90÷100=0.32+1.98= 9.直接写得数.10÷0.01=0.22+0.8=10﹣2.05=4÷0.25=0÷19.8=0.2×0.05= 1.36+3.64=0.4×0.25= 10.直接写得数0.25÷0.5=0.32÷0.04= 1.25×4= 14.3+5.7=1.6÷0.4=0.54÷6= 5.6÷7= 9×99+9= 11.直接写得数.5.09÷10=12.5×0.8=0.5÷0.25=45.6÷1=0.25×6=0.4×0.5=0.54÷0.9=10.2÷0.01= 12.口算4÷5= 1.8÷0.03=75÷2.5=0.2×25.4= 3.6+4.4=10﹣5.2= 3.4×0.2=7.8÷6= 13.直接写出得数3.6÷0.3= 6.3÷7= 5.6×100=0.25×4=0.56÷28=36÷0.9=0.64+0.8=0.72×3=1.2×20=7÷5= 6.12÷0.5=2.9÷5÷0.2=14.口算3.4÷2= 2.7÷0.3=0.42÷6=4.12×2= 6.3÷0.9= 1.53+2.4= 4.8×0.5= 6.4÷80=40×0.41=30.9×9=10×4.1= 4.6÷0.5= 15.直接写得数.0.25÷5=0.72÷0.9= 3.145×100=7.2÷3.6= 12.4÷4.1=0.01+0.99=7.6÷7.6= 1.25×4= 32.1×0.2= 12.5×0.8= 1÷50= 50﹣0÷2.5= 16.直接写得数0.35÷5=0.3×2=0.3÷0.2=0.7×0.9=0÷7÷3= 2.4×5= 4.9×0=2×0.45×5= 17.口算我最棒.0.64÷1.6= 1.4×0.5=0.72÷0.9=10.9﹣8.9= 2.7+7.2=0÷1.5= 2.7×0.3=24÷0.3= 4.3+2.7=200×0.07=0.25×4.9=4÷0.8= 18.直接写得数0.8÷10=25+8=187÷1000=0÷58=237﹣9=257+0=0×0.008=0.001×100= 19.直接写得数.0.63÷9= 5.4÷1.45=0×4.65= 3.5÷0.7= 1÷0.25=4×0.5=0.1÷0.05= 3.3÷0.1= 2.7÷0.90.36÷0.12=0.14÷2=9.6÷6=20.直接写得数.8.4÷4= 3.6÷0.2=0.8﹣0.35= 0.72÷90=1.1×0.8=0.56+4.44=0.3×0.2= 1.25×5×8=2.9+3.7+2.1=7.6×8+2.4×8= 5.8×3= 0.4×0.25= 21.请你直接写出得数4.8÷0.8=7.5﹣0.45=5.7+3.3=1÷0.25= 0.75÷1.5=0.2÷4=0.21×4= 1.2×60= 22.直接写出得数.0.72÷0.9=23.7+2.63= 4.8÷0.4=0.5÷2=6.5﹣5.6=1÷0.25=8÷0.8=10÷4=0.4×0.8=0.48÷0.8=0.35×4=0.3÷0.15= 23.直接写出得数1.2÷0.4=2÷8=4÷0.5=0.72÷4=0÷5.32= 3.6+1.8=1﹣0.73=0.24÷0.6= 6.4÷1.6=0.125×80=0.5×0.8=13.2÷0.6= 24.直接写得数.2.5÷0.5=0.42÷0.6=3.5÷0.01=0.54÷0.6= 0.25×4=12.5×0.8=0.2×50=0÷3.68= 25.直接写出得数.0.56÷0.7=0.6+0.65= 3.9÷1.3=12÷0.03=5.2÷0.13=99×1.01=13.5﹣2.8﹣7.2=25×0.32×125=6.2÷0.62﹣1= 5+3.2÷0.8= 8.62-4.68= 9.45+1055=26.口算3.6÷1.2=8.1÷9=4.8÷0.6= 1.25×8= 99÷0.9=25÷0.05=88÷0.008=1÷2.5= 27.直接写得数.0.64÷0.32= 0.7×1.2= 7.2÷(0.8×9)= 40×0.25= 2.9÷2.9= 0.3×0.6= 0.07×50= 100×0.07= 28.口算0.02×0.1= 12﹣4.3= 36÷0.01= 0÷4.8= 0.8×0.125= 2.3+0.8= 0.36÷0.4÷9= 22.1×1= 29.口算.3.6÷1.2=4.4÷4= 4.8÷0.4=1÷0.25=7.5÷0.5= 29.7÷0.9= 36.4÷0.7= 9.52÷1= 30.直接写得数.6.4÷8=9.8÷0.14= 4.8÷16=0.63÷9=8.7÷29=0.99÷9.9= 5.5÷0.11=13.8÷6.9= 31.直接写出得数.0.56÷8=0.07×10= 2.9×10.02≈3﹣1.9=1.2×0.1=51÷0.3=12.1÷3.9≈4.3+15.37= 32.直接写出得数.3.6÷3=7.8÷6=9.9÷9=56.7÷7=4.8÷4= 3.9÷13= 3.6÷12=8.1÷27= 0.04÷2=0.88÷4= 1.25÷5=7.5÷0.05=33.口算1÷0.25=0.78÷6=10÷8= 2.4÷24= 6.6÷0.6=5÷0.5= 4.5+0.76= 34÷0.2= 0.8×7=8×0.6=7.8÷0.6= 70×0.12= 34.直接算出得数.2.1÷2=3.8+1.02=7.5×0.4=2x﹣0.7x= 0.8×0.6= 3.2×0.5=9.6÷0.06= 3.57÷0.7= 35.直接写出得数.22.4÷4=0.25×4=0.21÷7= 5.6÷7=42÷3= 6.12÷0.6=0.54÷6=38.5÷5= 1.2×5= 24÷0.8= 0.72÷12= 0.12÷5= 36.直接写出得数.1.6÷0.4=7.2÷8= 4.2÷0.01=2﹣3.6÷1.8= 4÷5= 4.6÷0.46= 5.4÷1.8=0÷21.3= 37.口算1.2÷3=0.48÷6= 4.6÷23= 6.8÷4=0.72÷4=9.6÷6= 5.2÷13=12.5÷5= 38.直接写得数.56÷100= 1.29﹣0.29=0.56×100= 5.35+2.5=0.625×100=5﹣2.1=359+402=18.6﹣7=8.07×10= 3.5+0.9= 1.2+0.08=4×(25×14)= 7.34×0= 3.31+1.2=25×4÷25×4=0.25+0.2+0.75=39.口算0.42÷0.6=5×0.6= 2.4÷0.24= 1.25×2.3×8= 7.8+1.2=10÷0.1=0.1×0.1= 2.5﹣2.5×0.4= 40.直接写出得数.10﹣9.9=0.67+0.3=8.9×100= 2.5×4=8÷16=0.9×60= 1.04÷2=9.1÷7=1.5×8=0.39÷39=0.25÷8=0.05×300= 0.45÷9=7.2÷9=0×5.8=4×8×0.25= 41.口算.2.4÷2=48÷0.6=0.24÷0.2= 4.8÷6= 2.4÷0.2= 4.8÷0.6=9.6÷0.3=96÷3= 42.直接写出得数16÷5=22÷4=48÷100=12.6÷3=35÷70=95÷5= 1.3×4=12.6÷0.6= 43.直接写的数0.75÷0.5= 1.6÷0.4= 6.06÷6= 7÷3.5=16.8÷0.4= 2.8÷0.28= 1.8÷6= 0.5÷0.25= 44.口算下面各题.5.74÷10= 4.2÷0.07=0.56÷0.7= 0.16×4=0.4÷0.8= 1.2×5=0.6+0.65= 0.64÷2=45.计算.12.8÷4=31.5÷5= 5.1÷1.7= 39.6÷4= 97.8÷6=11.7÷3= 2.5×4÷2.5×4= 29.4÷2= 83.5÷5=95.2÷4=7.2÷0.9= 67.8÷2= 46.口算:0.96÷8=0.08÷0.01=0.2÷0.05=0.36÷0.18= 0.54÷0.6= 4.8÷0.24=10﹣0.92=0.9÷45= 47.直接写出得数.2.5×4=10÷0.1= 2.8÷0.4= 4.5÷0.15=1.5×6=15÷0.5=5÷2= 1.2÷0.03= 48.直接写出得数.0.3+5.7=1﹣0.6= 3.3+5.6=0.25+5.75= 5.3+50.7=0.4﹣0.35=1﹣0.04=8+50.28=0.9﹣0.7=10﹣9.9=8.6×100=148.3÷100= 49.直接写出得数.3.6÷1.2=0.72÷0.9= 2.6÷13=4.8÷0.4=4.4÷4=0.78÷6=7.2÷0.4=1÷0.25=7.1×0.4= 4.5÷0.15=1﹣0.07=0.42÷0.7= 50.直接写得数0.29÷100=5÷1000=19+0÷19=423﹣(100+23)= 170×100=320÷100=90﹣26﹣13=0.56×100÷1000= 0.26×1000=24×99+24=38﹣25+12﹣25=500÷100×1000=第四部分:小数除法列竖式计算1.竖式计算.0.51÷0.5=98÷5.6=20.4÷1.7=验算:2.用竖式计算(★需验算,除不尽的保留两位小数).1.092÷0.42=★210÷1.4=8.9÷0.56≈3.列竖式计算.69.02÷3.4 26.8×0.35 46.8÷3.4(保留一位小数)4.2÷0.28 4.2÷1.32(得数保留三位小数)2.05÷25 35.2÷16 0.13÷0.17(商精确到百分位)5.用竖式计算.117.3÷0.46 24×0.37 40.32÷l.68.6.竖式计算2.1÷0.7= 7÷0.35=7.2÷4=7.用竖式计算并验算.2.76×24=12.6÷0.28=220.5÷15=(用乘法验算) 2.64×1.09=(得数保留两位小数)6.3÷0.125=0.84×1.65=9.列竖式计算.(后1题得数保留两位小数)33.6÷568.96÷0.287.12÷0.2210.竖式计算.12.4÷4=45.9÷0.6=51÷0.3=52.8÷12=75.6÷0.18=9.6÷0.32=13÷2.554.5÷0.160.68÷0.95(保留两位小数)2.05×0.16(验算)78.6÷11=(商用循环小数表示) 6.21÷0.03.12.竖式计算,带*的要验算.1.25÷0.25=78.6÷11=(商用循环小数示)5.63÷7.8≈数保留两位小数)28.28÷0.4=*0.303÷5=13.列竖式计算(带★的保留两位小数)★1.57÷3.9 ★0.58×0.24 70.7÷33(商用循环小数表示)14.竖式计算(得数保留1位小数)带★的验算★64.8÷1.8≈★8﹣6.69≈0.65×3.84≈15.竖式计算.(带*的要验算)9.4÷11=*144÷12=14.2÷11=16.竖式计算.75.6÷0.1825.6÷0.032 2.78×1.817.竖式计算,按要求保留商的近似值.30÷7 (保留两位小数)60.9÷3.2(保留一位小数)25÷9.9(保留整数)5.63÷6.1(得数保留两位小数)10÷3.3(用循环小数表示)18.用竖式计算6.21÷0.03= 10.8÷45=8.54÷0.7= 72.9÷0.9=19.竖式计算.(后两题验算)50.96÷6.5 9.25÷3.7= 15÷74 6.72÷4.2=20.用竖式计算1.25÷0.25= 8.4÷0.56= 29.27÷3.28.54÷0.7=(验算)78.6÷11=(商用循环小数表示)21.用竖式计算.4.5×0.18= 2.346÷2.3=验算:70.3×3.6=5.06÷2.2=22.用竖式计算(带*得数保留两位小数)2.6×0.25 29.9÷0.46*4.65÷1.3.23.列竖式计算(除不尽的保留两位小数)24.6÷0.16;13.9÷6;0.325÷1.5;6.24÷0.8;18.3÷4;19.2÷6.24.用竖式计算,并指出哪些是循环小数.7.05÷0.94 1.8÷0.25 1.71÷3.8 4.83÷0.7 3.7÷2.2 5.7÷925.用竖式计算3.9÷0.26≈9.35÷3.4≈(得数保留一位小数)0.17÷0.11≈(商用循环小数表示)0.168÷0.7≈4.05÷18≈(得数保留两位小数) 4.68÷5.4=(商用循环小数表示)26.用竖式计算21.45÷15;49.04÷8;217.6÷34;11.7÷36; 1.69÷26;54.81÷27.27.将下列式子的得数保留两位小数25.32÷0.15 1.03÷1.2 1.07÷9.29.45÷0.32 13.51÷0.13 17.96÷0.36.28.列竖式计算.(第三小题得数保留两位小数,第五小题请写出验算过程.)47.04÷5.6= 3.28×2.7=0.764×1.2≈52.92÷0.27=8÷1.28=15.36÷12=29.列竖式计算:0.195÷0.13 3.6÷0.8 76.76÷0.766÷2.4 7.085÷0.65 9.72÷0.27.30.竖式计算.0.38×0.23 5.79×3.6 4.6×0.25 52.95÷75 3.01÷7 4.95÷1131.计算下面各题,并用乘法验算15.6÷12 328÷16 1.35÷2784.01÷31 0.646÷19 4.7×0.59.32.用竖式计算下列各题.(除不尽的保留两位小数,后面两道题要验算)45.15÷1.5= 52.65÷1.3= 15.75÷2.1= 8.42+0.6=0.436÷0.2=9.25÷3.7=6.6÷443.5÷2918.9÷27 1.35÷1537.5÷628.6÷1120.4÷24 3.64÷5234.竖式计算0.448÷32=14.3+6.7= 3.8×0.26=11.32﹣8.95=35.用竖式计算1.26÷1.8=64×5.04=43.5÷0.29=验算5.02×4.8= 1.35×320=26÷0.13=48÷2.3≈(保留两位小数)37.用竖式计算,加★号的要验算.★0.756÷0.18=0.35×0.48= ★6.02﹣5.94=38.用竖式计算(有★的要验算)96.6÷42 7.79÷95★6.3÷0.427÷0.35 0.14÷0.08 42÷8.7.8÷75= 2.55÷2.5= 2.5×1.04=5.63÷6.1(得数保留两位小数)27.8÷2.5=验算9.8×0.75=40.列竖式计算3.5×10.880.93÷26.7(精确十分位) 1.42÷1.1 (商用循环小数表示)41.竖式计算30.6÷45 4.06÷0.58※54.6÷0.91.42.计算下面各题,除不尽的用循环小数表示商43.8÷12 0.12÷0.25 7÷0.35 11.62÷913÷11 30.1÷33 19÷12 5.6÷0.07.43.列竖式计算.0.58×0.08=(结果保留两位小数)0.54÷0.018=13.6÷3=(商用循环小数表示)44.列竖式计算,并验算前两个,第三个保留两位小数.95.2÷28=46.8÷0.13= 5.63÷7.8=。

小学五年级数学练习题小数乘法练习(口算)

小学五年级数学练习题小数乘法练习(口算)

小学五年级数学练习题小数乘法练习(口算)题1:计算以下数的乘积。

1. 0.4 × 5
2. 1.2 × 3
3. 0.05 × 0.2
4. 2.5 × 0.6
5. 0.07 × 0.6
解答:
1. 0.4 × 5 = 2
2. 1.2 × 3 =
3.6
3. 0.05 × 0.2 = 0.01
4. 2.5 × 0.6 = 1.5
5. 0.07 × 0.6 = 0.042
题2:根据题意求出下列数的积。

1. 4箱苹果,每箱重0.8千克,共有多少千克?
2. 如果米草每根长度为0.5米,共有30根,总长度是多少米?
3. 一辆汽车每小时行驶0.7公里,5小时能行驶多远?
解答:
1. 4箱苹果,每箱重0.8千克,共有4 × 0.8 = 3.2千克。

2. 米草每根长度为0.5米,共有30根,总长度为0.5 × 30 = 15米。

3. 一辆汽车每小时行驶0.7公里,5小时能行驶的距离为0.7 × 5 = 3.5公里。

通过以上口算练习题,可以帮助五年级学生巩固小数乘法的口算能力。

希望同学们能认真思考每道题目,仔细计算,提高口算水平。

五年级上册一百道口算题

五年级上册一百道口算题

五年级上册一百道口算题一、小数乘法部分(30道)1. 0.2×0.3 =解析:计算小数乘法时,先按照整数乘法的方法计算,2×3 = 6,然后看因数中一共有两位小数,就从积的右边起数出两位点上小数点,所以结果是0.06。

2. 0.4×0.5 =解析:先算4×5 = 20,因数共有两位小数,积为0.20,小数末尾的0可以去掉,结果是0.2。

3. 0.6×0.7 =解析:6×7 = 42,因数共两位小数,积是0.42。

4. 0.8×0.9 =解析:8×9 = 72,因数有两位小数,结果为0.72。

5. 1.2×0.3 =解析:12×3 = 36,因数共两位小数,积是0.36。

6. 1.5×0.4 =解析:15×4 = 60,因数有两位小数,结果为0.6。

7. 2.1×0.2 =解析:21×2 = 42,因数共两位小数,积是0.42。

8. 2.5×0.3 =解析:25×3 = 75,因数有两位小数,结果为0.75。

解析:32×2 = 64,因数共两位小数,积是0.64。

10. 3.6×0.5 =解析:36×5 = 180,因数有一位小数,结果为1.8。

11. 4.5×0.2 =解析:45×2 = 90,因数有一位小数,积是0.9。

12. 5.2×0.3 =解析:52×3 = 156,因数共两位小数,积是1.56。

13. 6.3×0.1 =解析:63×1 = 63,因数共两位小数,积是0.63。

14. 7.5×0.2 =解析:75×2 = 150,因数有一位小数,结果为1.5。

15. 8.1×0.3 =解析:81×3 = 243,因数共两位小数,积是2.43。

北师大版五年级上册口算

北师大版五年级上册口算

北师大版五年级上册口算一、小数乘法口算。

1. 简单的小数乘整数。

- 例如:0.5×3 = 1.5。

- 计算方法:将小数看作整数相乘,0.5看作5,5×3 = 15,然后看因数中一共有一位小数,从积的右边起数出一位点上小数点,所以结果是1.5。

- 类似题目:0.2×4、0.3×5等。

2. 小数乘小数。

- 例如:0.3×0.4 = 0.12。

- 计算方法:先按照整数乘法算出积,3×4 = 12,再看因数中一共有两位小数,就从积的右边起数出两位点上小数点。

- 类似题目:0.2×0.5、0.4×0.6等。

二、小数除法口算。

1. 除数是整数的小数除法。

- 例如:1.5÷3 = 0.5。

- 计算方法:按照整数除法的法则去除,商的小数点要和被除数的小数点对齐。

15÷3 = 5,被除数1.5的小数点在1后面,所以商的小数点也在0后面,结果是0.5。

- 类似题目:2.4÷4、3.6÷6等。

2. 除数是小数的小数除法。

- 例如:1.2÷0.3 = 4。

- 计算方法:先把除数转化为整数,除数0.3扩大10倍变为3,被除数1.2也要扩大10倍变为12,然后按照除数是整数的除法进行计算,12÷3 = 4。

- 类似题目:2.1÷0.7、3.6÷0.9等。

三、分数乘法口算。

1. 分数乘整数。

- 例如:(1)/(2)×3=(3)/(2)(或1.5)- 计算方法:用分数的分子和整数相乘的积作分子,分母不变。

(1×3)/(2)=(3)/(2)。

- 类似题目:(2)/(3)×2、(3)/(4)×3等。

2. 分数乘分数。

- 例如:(1)/(2)×(1)/(3)=(1)/(6)- 计算方法:用分子相乘的积作分子,分母相乘的积作分母。

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