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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
5.61×4.3
8.9×2.4
5.5×55
9.77×0.02
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
除法:
85.44÷16
42.84÷7
101.7÷9
67.5÷15
230.4÷6
21.24÷36
0.736÷23
43.5÷12
35.21÷7
39.6÷24
6.21÷0.03
210÷1.4
51.3÷0.27
91.2÷3.8
0.756÷0.18
0.66÷0.3
11.97÷1.5
69.6÷2.9
38.4÷0.8
15÷0.06
(循环小数的用简便方法,除不尽保留2位小数):
8.2÷0.12
0.8÷0.9
76.4÷5.4
4.7÷3
1.25÷1.2
32÷42
14.36÷2.7
8.33÷6.2
1.7÷0.03
2.41÷0.7
用竖式计算
0.396÷1.2= 0.756÷0.36= 15.6×13=
0.18×15= 0.025×14= 3.06×36=
0.04×0.12= 3.84×2.6≈ 5.76×3= (保留一位小数)
7.15×22 90.75÷3.3 3.68×0.25
16.9÷0.13 1.55÷3.9 3.7×0.016
13.76×0.8= 5.2×0.6 8.4×1.3
6.4×0.5 4.48×0.4 5.25×5
35.4×4.2 0.042×0.54 0.76×0.32
0.25×0.046 2.52×3.4 1.08×25
0.12×0.5×0.16= 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+16.12 5.2×0.9+0.9
7.28×99+7.28 4.3×50×0.2 64-2.64×0.5
26×15.7+15.7×24 (2.275 +0.625)×0.28
3.94+34.3×0.2 1.2×(9.6÷2.4)÷4.8
8.9×1.1×4.7 2.7×5.4×3.9 3.6×9.85-5.46
8.05×3.4+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 × 7.4
12.5×0.4×2.5×8 0.87×3.16+4.64 9.5×101
0.68 ÷(5.2 -3.5)× 1.25
40.5 ÷ 0.81 × 0.18 4.8 ×(15 ÷ 2.4)
6.81+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
2.37×6.3+2.37×3.7 2.5×1.25×0.32 3.8×10.1
2.5×(3.8×0.04) 7.69×101 3.8×10.1
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÷0.5 3.75÷0.125–2.75 1.53+23.4÷7.2
9.5×99 13.5×0.98 12.5×8.8
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
5.61×4.3
8.9×2.4
5.5×55
9.77×0.02
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
除法:
85.44÷16
42.84÷7
101.7÷9
67.5÷15
230.4÷6
21.24÷36
0.736÷23
43.5÷12
35.21÷7
39.6÷24
6.21÷0.03
210÷1.4
51.3÷0.27
91.2÷3.8
0.756÷0.18
0.66÷0.3
11.97÷1.5
69.6÷2.9
38.4÷0.8
15÷0.06
(循环小数的用简便方法,除不尽保留2位小数):
8.2÷0.12
0.8÷0.9
76.4÷5.4
4.7÷3
1.25÷1.2
32÷42
14.36÷2.7
8.33÷6.2
1.7÷0.03
2.41÷0.7
用竖式计算
0.396÷1.2= 0.756÷0.36= 15.6×13=
0.18×15= 0.025×14= 3.06×36=
0.04×0.12= 3.84×2.6≈ 5.76×3= (保留一位小数)
7.15×22 90.75÷3.3 3.68×0.25
16.9÷0.13 1.55÷3.9 3.7×0.016
13.76×0.8= 5.2×0.6 8.4×1.3
6.4×0.5 4.48×0.4 5.25×5
35.4×4.2 0.042×0.54 0.76×0.32
0.25×0.046 2.52×3.4 1.08×25
0.12×0.5×0.16= 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+16.12 5.2×0.9+0.9
7.28×99+7.28 4.3×50×0.2 64-2.64×0.5
26×15.7+15.7×24 (2.275 +0.625)×0.28
3.94+34.3×0.2 1.2×(9.6÷2.4)÷4.8
8.9×1.1×4.7 2.7×5.4×3.9 3.6×9.85-5.46
8.05×3.4+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 × 7.4
12.5×0.4×2.5×8 0.87×3.16+4.64 9.5×101
0.68 ÷(5.2 -3.5)× 1.25
40.5 ÷ 0.81 × 0.18 4.8 ×(15 ÷ 2.4)
6.81+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
2.37×6.3+2.37×3.7 2.5×1.25×0.32 3.8×10.1
2.5×(3.8×0.04) 7.69×101 3.8×10.1
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÷0.5 3.75÷0.125–2.75 1.53+23.4÷7.2
9.5×99 13.5×0.98 12.5×8.8
2012-01-17
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二、简便计算。
2.31×1.2×0.5 99×4.3
12.78-(4.97+2.78) 63.4÷2.5÷0.4 0.8+0.88+0.22
4.6×0.35+4.6×0.65 23.4-0.8-13.4-7.2
2.95×101-2.95 (1.25+0.25)×4 4.9÷14
63×10.1-63×0.1 4.2×99+4.2 3.2×101
35÷(0.35×2) 3.14×1.9+31.4×0.81
7.3×10.2-1.46 0.92×1.01 15.6×13.1-15.6-15.6×2.1
4.9+0.8-4.9+0.8 12.96-(9.6-1.52)
1.2÷0.25+1.3×4 (4.8+6.4)÷8
三、脱式计算。
40.5÷0.81×1.05 (203.4+72.2)÷(1.3×0.2)
97.5÷0.39-136.7 86.4÷0.24×0.25
11.16÷(10-0.7) (300-94.8)÷0.5
12.6÷[3.5-(9.8-8.7)] 0.648÷[(0.4+0.5)×0.6
27×41=
43×46=
25×23=
66×57=
47×33=
87×10=
84×13=
15×46=
95×37=
45×86=
98×27=
43×90=
96×54=
84×81=
91×80=
84×41=
76×46=
60×62=
43×10=
82×46=
91×32=
41×31=
34×40=
42×64=
31×41=
23×99=
76×72=
20×26=
14×78=
58×37=
42×11=
88×17=
11×81=
39×54=
43×23=
22×72=
86×39=
61×39=
45×62=
79×78=
54×40=
83×77=
81×96=
10×62=
60×47=
37×97=
38×26=
59×93=
26×83=
36×30=
42×40=
39×93=
54×37=
35×57=
43×98=
81×22=
35×96=
17×69=
72×98=
42×56=
26×12=
96×29=
58×26=
58×42=
14×21=
94×33=
89×66=
55×91=
99×75=
54×35=
56×41=
20×90=
12×66=
60×56=
70×60=
41×20=
39×84=
78×88=
72×65=
47×23=
52×61=
88×94=
40×91=
49×66=
97×73=
82×10=
18×14=
21×44= 11×20= 24×34= 10×59= 31×83= 10×55= 53×21= 25×50= 40×19= 24×55= 11×87= 86×74= 93×91=
2.31×1.2×0.5 99×4.3
12.78-(4.97+2.78) 63.4÷2.5÷0.4 0.8+0.88+0.22
4.6×0.35+4.6×0.65 23.4-0.8-13.4-7.2
2.95×101-2.95 (1.25+0.25)×4 4.9÷14
63×10.1-63×0.1 4.2×99+4.2 3.2×101
35÷(0.35×2) 3.14×1.9+31.4×0.81
7.3×10.2-1.46 0.92×1.01 15.6×13.1-15.6-15.6×2.1
4.9+0.8-4.9+0.8 12.96-(9.6-1.52)
1.2÷0.25+1.3×4 (4.8+6.4)÷8
三、脱式计算。
40.5÷0.81×1.05 (203.4+72.2)÷(1.3×0.2)
97.5÷0.39-136.7 86.4÷0.24×0.25
11.16÷(10-0.7) (300-94.8)÷0.5
12.6÷[3.5-(9.8-8.7)] 0.648÷[(0.4+0.5)×0.6
27×41=
43×46=
25×23=
66×57=
47×33=
87×10=
84×13=
15×46=
95×37=
45×86=
98×27=
43×90=
96×54=
84×81=
91×80=
84×41=
76×46=
60×62=
43×10=
82×46=
91×32=
41×31=
34×40=
42×64=
31×41=
23×99=
76×72=
20×26=
14×78=
58×37=
42×11=
88×17=
11×81=
39×54=
43×23=
22×72=
86×39=
61×39=
45×62=
79×78=
54×40=
83×77=
81×96=
10×62=
60×47=
37×97=
38×26=
59×93=
26×83=
36×30=
42×40=
39×93=
54×37=
35×57=
43×98=
81×22=
35×96=
17×69=
72×98=
42×56=
26×12=
96×29=
58×26=
58×42=
14×21=
94×33=
89×66=
55×91=
99×75=
54×35=
56×41=
20×90=
12×66=
60×56=
70×60=
41×20=
39×84=
78×88=
72×65=
47×23=
52×61=
88×94=
40×91=
49×66=
97×73=
82×10=
18×14=
21×44= 11×20= 24×34= 10×59= 31×83= 10×55= 53×21= 25×50= 40×19= 24×55= 11×87= 86×74= 93×91=
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1.8 ÷ 1.2 20.64 ÷ 24 24 ÷ 16 23÷184
0.828 ÷ 36 97.2 ÷ 24 7.65 ÷ 0.85 12.6 ÷ 0.28
8.61 ÷ 2.1 58.75 ÷ 0.25 220.3 ÷ 0.7 58.8 ÷ 0.28
58.9 ÷ 31 7.67 ÷ 5.9 83.2 ÷ 3.2 97.2 ÷ 5.4
0.828 ÷ 36 97.2 ÷ 24 7.65 ÷ 0.85 12.6 ÷ 0.28
8.61 ÷ 2.1 58.75 ÷ 0.25 220.3 ÷ 0.7 58.8 ÷ 0.28
58.9 ÷ 31 7.67 ÷ 5.9 83.2 ÷ 3.2 97.2 ÷ 5.4
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123X321=?
456X654=?
789X987=?
456X654=?
789X987=?
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