如下图：
乘法（multiplication），是指将相同的数加起来的快捷方式。其运算结果称为积，“x”是乘号。从哲学角度解析，乘法是加法的量变导致的质变结果。整数（包括负数），有理数（分数）和实数的乘法由这个基本定义的系统泛化来定义。
乘法也可以被视为计算排列在矩形（整数）中的对象或查找其边长度给定的矩形的区域。 矩形的区域不取决于首先测量哪一侧，这说明了交换属性。 两种测量的产物是一种新型的测量，例如，将矩形的两边的长度相乘给出其面积，这是尺寸分析的主题。
温馨提示：答案为网友推荐，仅供参考
第1个回答 2021-08-20
小数的乘法竖式计算题如下：
乘法竖式计算要注意问题：
两个数的最后一位要对齐。
尽量把数字多的数写在上面，数字少的数写在下面，以减少乘的次数。
计算方法：
1、当几个乘积相加减，而这些乘积中又有相同的因数时，我们可以采用提取公因数的方法进行巧算。如果乘积中另外几个因数相加减的结果正好凑成整十、整百、整千、整万的数，或是是一些比较简单的数，那么计算就更为简便。这种方法叫“提取公因数法”。
2、一组分数混合运算时，为了能够“凑整”或凑成比较简单的数，常常需要先把分数中分子或分母进行拆分，再来进行分组运算。这种巧算方法叫“拆分法”，也叫“分解分组法”。
3、在相同数字较多的分数式中，用字母表示式子中的一部分，使运算更加方便。这就是分数式中的代数法。
本回答被网友采纳第2个回答 推荐于2018-03-11
小数乘法竖式
1.2 × 2.3 = 2.76
0.125 × 0.88 = 0.11
1.1 × 8.56 = 9.416
0.45 × 1.26 = 0.567
竖式请见图：
第3个回答 2016-09-10
第4个回答 2019-01-15
3.5×6.3 0.72×1.5 2.05×0.4 12.4×27 2.3×12 6.7×0.3 2.4×6.2 0.56×0.24
6.7×0.3 0.56×0.04 3.7×4.6 0.29×0.37
6.5×8.4 56×1.3 3.2×2.5 2.6×1.08
0.87×7 3.5×16 12.5×42 1.8×23
0.37×0.41 1.06×25 7×8.06 0.6×0.39
27×0.43 1.7×0.45 1.2×1.4 0.37×8.4
0.86×1.2 2.34×0.15 21×2.84 4.32×8
6.8×25 2.58×3 58×1.6 36×2.4
2.56×
3.7 1.56×0.08 1.03×5.3 0.208×2.5
1.12×1.1 0.326×1.3 6.5×6.5 3.3×
2.6
0.98×5.5 2.1×2.15 5.2×2.9 0.48×8.1
26.4×0.063 0.15×0.65 5.6×2.9 3.77×1.8
9.99×0.02 4.67×0.9 5.54×2.44 1.666×6.1 9.432×0.002 5.6×6.5 4.88×2.9 5.61×2.1
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 5.555×5.2 2.22×
3.33 7.658×85 36.02×0.3 56.78×8 5.6×2.9 3.77×1.8 0.02×96 5.22×0.3 9.99×0.02
4.67×0.9 5×2.44 1.666×6.1 9.432×0.002
5.6×
6.5 4.88×2.9
1.384×5.1 8.78×83
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 5.555×5.2 2.22×
3.33 7.658×85 36.02×0.3 56.78×8 3 0.1×5.3 5.3×6.3
4.4×7.3 4×8.8 4.1×0.8 9.9×1.4 6.4×2.4 12.48×4 9.8×1.3
4.8×9.1 0.6×7 4.2×1.8 8.6×6.5
5.59×4.3 0.2×5.6 9.4×8.4 0.5×4.6
1.3×1.6 4.6×3.8 9.1×5.6 229.570.4×1.9
2.1×7.9
3.8×2.3 1.8×9.6 11.25×7.9
3.8×2.3 1.8×9.6 6.1×
4.8 27.5×
5.7 8.7×0.1 1.7×4.7 8.6×8.9 0.3×7.6 2.1×0.4 9.8×4.3 7.7×9.9 3.4×9
2.8×
3.5 5×1.1 2.9×8.2 3.9×1.7 0.02×96 5.22×0.3 1.02×66 5.22×7.3
12.8×9.5 15×9.1 82.9×82.2 43.9×1.7
2.45×0.69= 2.16×6.4= 1.44×0.25=
0.58×0.09= 12.4×0.76= 9.6×0.39=
3.5×103= 0.702×57= 3.15×94=
2.3×11.2= 6.9×0.36= 0.023×6.2=
6.7×3= 0.66×0.04= 3.7×4.6= 0.29×97=
6.5×0.04= 56×13.3= 3.02× 2.5= 2.65×1.8=
0.81×702= 3.05×16= 12.5×4= 1.81×2.3=
0.37×0.04= 1.06×25= 6.7×8.16=
27×0.43= 1.7×45= 1.2×1.04= 0.37×14=
86×1.2= 2.4×0.15= 21×2.4= 4.32×8=
0.68×25= 2.58×32= 5.8×0.46= 3.6×0.14=
2.56×
3.7= 1.56×0.18= 1.03×5.03= 0.208×27=
1.11×1.1= 0.36×1.3=
2.5×6.5= 0.3×2.6=
0.98×45= 3.02× 2.5= 5.2× 2.09= 0.68×8.1=
五年级数学竖式计算题
0.27×4.1= 4.3×4.6= 0.25×2.3= 6.6×0.57=
4.7×3.3= 87×10=84×13= 1.5×4.6=
0.95×3.7= 0.45×86= 9.8×27= 0.43×90=
9.6×54= 84×8.1= 18.2–9.02= 12.6÷3=
15+6.92= 32.3×5.2= 328÷41= 645÷82=
282÷32= 5.76×72= 412÷53= 190×0.4=
4.5×840= 4.08×60= 1.12×32= 430×0.18= 30.4×320= 8.5×60=
5.6×796= 99.9×97=
56.6×50= 26.9×86= 68.4×8.95= 3×0.98=
1.11×12= 5.67×78= 0.175×90= 340×8.4=
2.7×0.3= 90÷15= 12.4×8= 2.78×3= 96÷24= 405÷21= 4.3×
3.9= 3.7×2.6=
76×3.9= 605÷59= 30.4×23= 1.26×87=
2.7×32= 4.8×27= 45.8×29= 7.3×1.5 = 1.22×6.6 = 20.1×36= 6.8×408= 2.8×27=
4.1×2.55= 608÷42=
5.7×12.8= 310÷70= 4.6×14= 470÷18= 1000÷25= 160×
6.1= 26×420= 290×30= 8100÷30= 7600÷22=
7600÷40= 680+270= 980÷14= 4200÷35=
6.2×130= 130×5.8= . 200×4.8= 930×66=
530+280= 9200÷44= 840÷22= 18×50.8=
8000÷56 = 1900÷23= 2.08×16= 8700÷300=
3.05×3.3= 3.7×14= 7000÷14= 600÷18= 9600÷88= 1.4×306= 8800÷48= 9600÷82=
5.8×4.9= 760×24= 7500÷55= 0.37×209=
650÷13= 240×44= 640÷80= 15×19=
1.2×11= 160×8.6= 220×6.3= 1.04×74=
4500÷57= 120×2.7= 90×3.8= 270÷34=
270×3.1= 84÷21= 760÷91= 66÷7=
1000÷54= 123×15= 360÷47= 55×0.5=
32×0.6= 200÷49= 180÷92= 240÷28= 3.5×2.8= 140×7.8= 1.3×65= 280×3= 350×2.7= 0.502×1.1= 250×6.9= 7200+900=
410-201= 12.5×8.7= 4.8×2.6= 6600÷62= 0.39×1.4= 1.1×85= 2.4×57= 3600÷59= 4000÷74= 530-70= 420-90= 2.09×0.47=
8652÷36= 999+99999= 899+344= 497-299= 2370+1995= 3999+498= 1883-398= 1.68×25= 7.5×243= 70.4×25= 53.2×2.5= 3.2×51.2= 0.25×0.28 0.125×3.2×2.5 35×40.2
0.25×4÷0.25×4 3.5×9.9 3.5×99+3.5
3.5×101-3.5 3.5×9.9+3.5×0.1 3.5×2.7+35×0.73
3.5×2.7-3.5×0.7 (32+5.6)÷0.8 3.5÷0.6-0.5÷0.6
4.9÷3.5 7÷0.25÷4 7÷0.125 ÷8
7.35÷(7.35×0.25) 7.35÷(7.35÷0.25) 7.325-(5.325+1.7)
3.29+0.73+2.27 3.29-0.73-2.27 7.5+2.5-7.5+2.5
7.325-3.29-3.325 7.325-(5.325+1.7) 7.325-(5.325-1.7)
3.29+0.73-2.29+2.27 3.29×0.25×4 0.125×8.8
63.4÷2.5÷0.4 4.9÷1.4 3.9÷(1.3×5) (7.7+1.54)÷0.7 2.5×2.4 2.7÷45 0.35×1.25×2×0.832.4×0.9+0.1×32.415÷0.25
28.6×101-28.6 0.86×15.7-0.86×14.7 2.4×102
14-7.32-2.68 2.64+8.67+7.36+11.33 2.31×1.2×0.5
(2.5-0.25)×0.4 9.16×1.5-0.5×9.16 3.6-3.6×0.5
7.6×0.8+ 0.2×7.60.85×1990.25×8.5×4
0.25×36 0.125×3.2×2.5 35×40.2
12.06+5.07+2.94 25×7×4 30.34-10.2+9.66
102×7.3÷5.1 125÷2×834÷4÷1.7
7×3÷7×3(40+8)×2524×(2+10)
125×(8+80)86×(1000-2)36×(100+50)15×(40-8) 3.2×12.5×25 1.25×88 3.6×0.25
3.8×9.9+0.38 2.6×9.9 98×3.27+6.54
101×2.17-2.17 0.92×1.41+0.92×8.59
1.3×11.6-1.6×1.3700÷14÷5 18.6÷
2.5÷0.4
1.96÷0.5÷4 1.06×
2.5×4 7÷0.25÷4 7÷0.125 ÷8
3.9÷(1.3×5)
小数乘法计算题一(5-10分钟内完成)
竖式计算
35×0.24= 0.217×18= 4.76×12=
0.41×54= 2.8×53= 103×0.25=
3.24×65= 1.48×32= 65×3.12=
1.05×24= 390×0.15= 0.57×23= 14.3×38= 0.371×16= 0.52×44=
小数乘法计算题二(5-10分钟内完成)竖式计算
12.5×42= 160×3.5= 0.87×16= 17×12.4= 2.3×240= 2.05×41= 2.08×26= 13.9×18= 2.65×12=
26×0.17= 2.56×25= 0.048×65= 59×3.4= 0.93×130= 16×4.25=
小数乘法计算题三(5-10分钟内完成)竖式计算
8.02×17= 5.75×12= 420×1.6= 2.67×14= 38×0.25= 63×0.051= 32×2.05= 0.324×17= 2.18×45=
8.3×2.6= 0.045×201= 52×8.36= 4.32×45= 2.1×640= 25×1.08=
小数乘法计算题四(5-10分钟内完成)竖式计算
0.43×2.9= 520×0.73= 81×0.17= 8.65×36= 4.5×217= 54×0.026= 0.35×25= 0.135×35= 53×0.27= 0.69×140= 204×8.5= 28.6×19=
45×4.32= 0.73×26= 218×4.5=
小数乘法计算题五(5-10分钟内完成)
竖式计算
5.75×14= 3.8 ×125= 0.225×84= 2.05×24= 474×0.16= 0.023×54= 24.8×37= 0.025×14= 2.05×32= 45×0.038= 0.48×35= 240×3.5=
0.63×85= 8.02×580= 0.13×745=
望采纳
6.7×0.3 0.56×0.04 3.7×4.6 0.29×0.37
6.5×8.4 56×1.3 3.2×2.5 2.6×1.08
0.87×7 3.5×16 12.5×42 1.8×23
0.37×0.41 1.06×25 7×8.06 0.6×0.39
27×0.43 1.7×0.45 1.2×1.4 0.37×8.4
0.86×1.2 2.34×0.15 21×2.84 4.32×8
6.8×25 2.58×3 58×1.6 36×2.4
2.56×
3.7 1.56×0.08 1.03×5.3 0.208×2.5
1.12×1.1 0.326×1.3 6.5×6.5 3.3×
2.6
0.98×5.5 2.1×2.15 5.2×2.9 0.48×8.1
26.4×0.063 0.15×0.65 5.6×2.9 3.77×1.8
9.99×0.02 4.67×0.9 5.54×2.44 1.666×6.1 9.432×0.002 5.6×6.5 4.88×2.9 5.61×2.1
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 5.555×5.2 2.22×
3.33 7.658×85 36.02×0.3 56.78×8 5.6×2.9 3.77×1.8 0.02×96 5.22×0.3 9.99×0.02
4.67×0.9 5×2.44 1.666×6.1 9.432×0.002
5.6×
6.5 4.88×2.9
1.384×5.1 8.78×83
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 5.555×5.2 2.22×
3.33 7.658×85 36.02×0.3 56.78×8 3 0.1×5.3 5.3×6.3
4.4×7.3 4×8.8 4.1×0.8 9.9×1.4 6.4×2.4 12.48×4 9.8×1.3
4.8×9.1 0.6×7 4.2×1.8 8.6×6.5
5.59×4.3 0.2×5.6 9.4×8.4 0.5×4.6
1.3×1.6 4.6×3.8 9.1×5.6 229.570.4×1.9
2.1×7.9
3.8×2.3 1.8×9.6 11.25×7.9
3.8×2.3 1.8×9.6 6.1×
4.8 27.5×
5.7 8.7×0.1 1.7×4.7 8.6×8.9 0.3×7.6 2.1×0.4 9.8×4.3 7.7×9.9 3.4×9
2.8×
3.5 5×1.1 2.9×8.2 3.9×1.7 0.02×96 5.22×0.3 1.02×66 5.22×7.3
12.8×9.5 15×9.1 82.9×82.2 43.9×1.7
2.45×0.69= 2.16×6.4= 1.44×0.25=
0.58×0.09= 12.4×0.76= 9.6×0.39=
3.5×103= 0.702×57= 3.15×94=
2.3×11.2= 6.9×0.36= 0.023×6.2=
6.7×3= 0.66×0.04= 3.7×4.6= 0.29×97=
6.5×0.04= 56×13.3= 3.02× 2.5= 2.65×1.8=
0.81×702= 3.05×16= 12.5×4= 1.81×2.3=
0.37×0.04= 1.06×25= 6.7×8.16=
27×0.43= 1.7×45= 1.2×1.04= 0.37×14=
86×1.2= 2.4×0.15= 21×2.4= 4.32×8=
0.68×25= 2.58×32= 5.8×0.46= 3.6×0.14=
2.56×
3.7= 1.56×0.18= 1.03×5.03= 0.208×27=
1.11×1.1= 0.36×1.3=
2.5×6.5= 0.3×2.6=
0.98×45= 3.02× 2.5= 5.2× 2.09= 0.68×8.1=
五年级数学竖式计算题
0.27×4.1= 4.3×4.6= 0.25×2.3= 6.6×0.57=
4.7×3.3= 87×10=84×13= 1.5×4.6=
0.95×3.7= 0.45×86= 9.8×27= 0.43×90=
9.6×54= 84×8.1= 18.2–9.02= 12.6÷3=
15+6.92= 32.3×5.2= 328÷41= 645÷82=
282÷32= 5.76×72= 412÷53= 190×0.4=
4.5×840= 4.08×60= 1.12×32= 430×0.18= 30.4×320= 8.5×60=
5.6×796= 99.9×97=
56.6×50= 26.9×86= 68.4×8.95= 3×0.98=
1.11×12= 5.67×78= 0.175×90= 340×8.4=
2.7×0.3= 90÷15= 12.4×8= 2.78×3= 96÷24= 405÷21= 4.3×
3.9= 3.7×2.6=
76×3.9= 605÷59= 30.4×23= 1.26×87=
2.7×32= 4.8×27= 45.8×29= 7.3×1.5 = 1.22×6.6 = 20.1×36= 6.8×408= 2.8×27=
4.1×2.55= 608÷42=
5.7×12.8= 310÷70= 4.6×14= 470÷18= 1000÷25= 160×
6.1= 26×420= 290×30= 8100÷30= 7600÷22=
7600÷40= 680+270= 980÷14= 4200÷35=
6.2×130= 130×5.8= . 200×4.8= 930×66=
530+280= 9200÷44= 840÷22= 18×50.8=
8000÷56 = 1900÷23= 2.08×16= 8700÷300=
3.05×3.3= 3.7×14= 7000÷14= 600÷18= 9600÷88= 1.4×306= 8800÷48= 9600÷82=
5.8×4.9= 760×24= 7500÷55= 0.37×209=
650÷13= 240×44= 640÷80= 15×19=
1.2×11= 160×8.6= 220×6.3= 1.04×74=
4500÷57= 120×2.7= 90×3.8= 270÷34=
270×3.1= 84÷21= 760÷91= 66÷7=
1000÷54= 123×15= 360÷47= 55×0.5=
32×0.6= 200÷49= 180÷92= 240÷28= 3.5×2.8= 140×7.8= 1.3×65= 280×3= 350×2.7= 0.502×1.1= 250×6.9= 7200+900=
410-201= 12.5×8.7= 4.8×2.6= 6600÷62= 0.39×1.4= 1.1×85= 2.4×57= 3600÷59= 4000÷74= 530-70= 420-90= 2.09×0.47=
8652÷36= 999+99999= 899+344= 497-299= 2370+1995= 3999+498= 1883-398= 1.68×25= 7.5×243= 70.4×25= 53.2×2.5= 3.2×51.2= 0.25×0.28 0.125×3.2×2.5 35×40.2
0.25×4÷0.25×4 3.5×9.9 3.5×99+3.5
3.5×101-3.5 3.5×9.9+3.5×0.1 3.5×2.7+35×0.73
3.5×2.7-3.5×0.7 (32+5.6)÷0.8 3.5÷0.6-0.5÷0.6
4.9÷3.5 7÷0.25÷4 7÷0.125 ÷8
7.35÷(7.35×0.25) 7.35÷(7.35÷0.25) 7.325-(5.325+1.7)
3.29+0.73+2.27 3.29-0.73-2.27 7.5+2.5-7.5+2.5
7.325-3.29-3.325 7.325-(5.325+1.7) 7.325-(5.325-1.7)
3.29+0.73-2.29+2.27 3.29×0.25×4 0.125×8.8
63.4÷2.5÷0.4 4.9÷1.4 3.9÷(1.3×5) (7.7+1.54)÷0.7 2.5×2.4 2.7÷45 0.35×1.25×2×0.832.4×0.9+0.1×32.415÷0.25
28.6×101-28.6 0.86×15.7-0.86×14.7 2.4×102
14-7.32-2.68 2.64+8.67+7.36+11.33 2.31×1.2×0.5
(2.5-0.25)×0.4 9.16×1.5-0.5×9.16 3.6-3.6×0.5
7.6×0.8+ 0.2×7.60.85×1990.25×8.5×4
0.25×36 0.125×3.2×2.5 35×40.2
12.06+5.07+2.94 25×7×4 30.34-10.2+9.66
102×7.3÷5.1 125÷2×834÷4÷1.7
7×3÷7×3(40+8)×2524×(2+10)
125×(8+80)86×(1000-2)36×(100+50)15×(40-8) 3.2×12.5×25 1.25×88 3.6×0.25
3.8×9.9+0.38 2.6×9.9 98×3.27+6.54
101×2.17-2.17 0.92×1.41+0.92×8.59
1.3×11.6-1.6×1.3700÷14÷5 18.6÷
2.5÷0.4
1.96÷0.5÷4 1.06×
2.5×4 7÷0.25÷4 7÷0.125 ÷8
3.9÷(1.3×5)
小数乘法计算题一(5-10分钟内完成)
竖式计算
35×0.24= 0.217×18= 4.76×12=
0.41×54= 2.8×53= 103×0.25=
3.24×65= 1.48×32= 65×3.12=
1.05×24= 390×0.15= 0.57×23= 14.3×38= 0.371×16= 0.52×44=
小数乘法计算题二(5-10分钟内完成)竖式计算
12.5×42= 160×3.5= 0.87×16= 17×12.4= 2.3×240= 2.05×41= 2.08×26= 13.9×18= 2.65×12=
26×0.17= 2.56×25= 0.048×65= 59×3.4= 0.93×130= 16×4.25=
小数乘法计算题三(5-10分钟内完成)竖式计算
8.02×17= 5.75×12= 420×1.6= 2.67×14= 38×0.25= 63×0.051= 32×2.05= 0.324×17= 2.18×45=
8.3×2.6= 0.045×201= 52×8.36= 4.32×45= 2.1×640= 25×1.08=
小数乘法计算题四(5-10分钟内完成)竖式计算
0.43×2.9= 520×0.73= 81×0.17= 8.65×36= 4.5×217= 54×0.026= 0.35×25= 0.135×35= 53×0.27= 0.69×140= 204×8.5= 28.6×19=
45×4.32= 0.73×26= 218×4.5=
小数乘法计算题五(5-10分钟内完成)
竖式计算
5.75×14= 3.8 ×125= 0.225×84= 2.05×24= 474×0.16= 0.023×54= 24.8×37= 0.025×14= 2.05×32= 45×0.038= 0.48×35= 240×3.5=
0.63×85= 8.02×580= 0.13×745=
望采纳