国庆小数乘法巧算及竖式计算9篇

2. 竖式计算 0.45×3.2
3.47×0.24
246.4×26
3.57×3.4
1.06×3.5
3.2×0.84
10.89×7.26
4.65×0.11
7.82×1.25
4.26×2.5
4
1.巧算 1998199.8 19.98 1.998
328×999＋328
12.512.3 1.25 23
8.51.7 0.8583
2、竖式计算 8.9×7=
15.6×13=
0.18×15=
327×2.8=
0.025×14=
3.06×36=
0.56×9.9=
17.3×28=
16×3.2=
1.6×68=
3
1.巧算 12.5×0.25×16
0.98×101
2.5×32×1.25×9
4.2×0.3+42×0.07
7.28×333+72.8×66.6+7.28
0.756×0.18＝ 210×1.4＝ 2.688×0.56＝
10.625×25＝
126×45=
2
1. 乘法分配律法巧算 6.5×2.3＋6.5×7.7
12.5×12.3-1.25×23
8.5×1.7+0.85×83
99.9×116－99.9×16
666666×333333+777778×999999
1、巧算 1.25×0.4×8×2.5
ຫໍສະໝຸດ Baidu
80×25×1.25×0.4
64×1.25×0.25×0.5
1.44×25×100×4
1.25×9.98×2.5×320
2、竖式计算 15.6×13=
0.18×15=
0.025×14=
0.125×4.2＝
0.65×0.48＝ 13.2×1.56＝ 85.44×16＝
5.75×2.02＝
30.5×4.06=
62.4×0.045=
1
1、巧算 1.3×20+8.7×20
268×359+722×359
0.125×2.5×64×0.5
5.4+（5.4×99）
0.25×0.24×4
2、竖式计算 1.35×27＝
0.416×32＝
3.64×52＝ 51.3×0.27＝
91.2×3.8＝
0.125×408
0.4×98＋0.8
2. 竖式计算 8.3×0.15
0.12×2.05
3.14×2.9
83.8×72.6
0.93×3.05
53.46×0.54
（保留两位小数）
12.55×0.038
17.4×22
75.45×1.5
14×1.8
7
1. 巧算 1.25×3.3×0.8
39×10.1
0.87×6.6+0.87×3.4
3.5×1.98
0.87×6.6+8.7×0.34
2. 竖式计算 3.08×0.43
16.787×0.28
9.25×3.7
8.3×12.5
348×14.5
58.6×11
12.5×1.7
3.25×1.3=
1.05×160=
4.8×0.3=
3.2×0.25=
8
1. 巧算 12.5×1.7＋8.3×12.5
1.25×0.32×2.5
2.竖式计算 28.65×1.5
4.63×2.07
76.5×33
0.82×1.05
0.47×8.5
4.87×8
5.6×22.4
8.56×7.5
3.7×9.9
85.6×0.25
5
1.巧算 25×4.4
490×99－490＋490×2
4.32×81－0.32×81
4.8 4.8 0.9
0.64×1.5+0.16×4
(0.14+0.14+0.14+0.14)×0.25
1.44-0.72×1.2
1.31+1.32+1.33+1.43+1.35
2、列竖式计算 0.55×9.6=
3.81×7
3.25×9.04=
5.25×2.7
3.5×0.1=
43×0.1=
200×0.04=
3.2+1.6=
2.4×0.5=
9.36×9=
9
0.125×0.25×0.5×64
2.竖式计算 12.56×3.48
7.44×6.25
11.5×3.2
7.5×12.8
48.3×17.93
8.93×48.3
18.2×9.5
8.2×3.5
3.41×1.97 0.49×1.03
6
1. 巧算 0.56×99＋0.56×1
25×0.4×32
0.98101