小数乘除法计算题
85.44÷16 42.84÷7 101.7÷9 67.5÷15 230.4÷6
5.34 6.12 11.3 4.5 38.4
21.24÷36 0.736÷23 43.5÷12 35.21÷7 39.6÷24
0.59 0.032 3.625 5.03 1.65
6.21÷0.03 210÷1.4 51.3÷0.27 91.2÷3.8 0.756÷0.18
207150 190 24 4.2
0.66÷0.3 11.97÷1.5 69.6÷2.9 38.4÷0.8 15÷0.06
2.2 7.98 2.4 48 250
5.6×2.9 3.77×1.8 0.02×96 5.22×0.3 9.99×0.02
16.24 6.786 1.92 1.566 0.1998
4.67×0.9 5×2.44 1.666×6.1 9.432×0.002 5.6×6.5
4.203 12.2 10.1626 0.018864 36.4
4.88×2.9 5.61×4.3 8.9×2.4 5.5×55 9.77×0.02
14.152 24.123 21.36 302.5 0.1954
1.384×5.1 8.78×83 2.6×61 0.059×0.2 4.268×1.7
7.0584 728.74 158.6 0.0118 7.2556
57×5.7 9.46×2.85 17.8×6.4 1.5×4.9 2.5×0.88
324.926.961 113.92 7.35 2.2
5.555×5.2 2.22×3.33 7.658×85 36.02×0.3 56.78×8
28.8867.3926 650.93 10.806 454.24
(
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
68.330.89 14.151.57 1.04
32÷42 14.36÷2.7 8.33÷6.2 1.7÷0.03 2.41÷0.7
0.76 5.32 1.34 56.67 3.44
用竖式计算
0.396÷1.2= 0.756÷0.36= 15.6×13= 0.18×15=
0.33 2.1 202.8 2.7
0.025×14= 3.06×36= 0.04×0.12= 3.84×2.6≈
0.35 110.16 0.0048 9.984
5.76×3= 7.15×22 90.75÷3.3 3.68×0.25
17.28 157.3 27.5 0.92
16.9÷0.13 1.55÷3.9 3.7×0.016 13.76×0.8=
130 0.397 0.059211.008
5.2×0.6 8.4×1.3 6.4×0.5 4.48×0.4
3.12 10.92 3.2 1.792
5.25×5 35.4×4.2 0.042×0.54 0.76×0.32
26.25 148.68 0.02268 0.2432
0.25×0.046 2.52×3.4 1.08×25 0.12×0.5×0.16=
0.0115 8.568 27 0.0096
4.8×0.25= 0.125×1.4≈(保留两位小数)
1.20.18
2.5÷0.7= (保留三位小数) 10.1÷3.3= (商用循环小数)
3.571 3.06060606......
10.75÷12.5= (用乘法验算) 3.25×9.04= (用除法验算)
0.86 29.38
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
71 1612 5.58
7.28×99+7.28 4.3×50×0.2 64-2.64×0.5
728 43 62.68
26×15.7+15.7×24 (2.275 +0.625)×0.28 3.94+34.3×0.2
785 0.812 10.8
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
1 46.013 56.862 30
8.05×3.4+7.6 6.58×4.5×0.9 2.8×0.5+1.58
34.97 26.649 2.98
32+4.9-0.9 4.8-4.8×0.5 (1.25-0.125)×8
36 2.4 9
4.8×100.1 56.5×99+56.5 7.09×10.8-0.8×7.09
480.48 5650 70.9
4.85 + 0.35 ÷ 1.4 8.7 × 17.4 - 8.7 × 7.4 12.5×0.4×2.5×8
5.1 87 100
0.87×3.16+4.64 9.5×101 0.68 ÷(5.2 -3.5)× 1.25
7.3892 959.5 0.5
40.5 ÷ 0.81 × 0.18 4.8 ×(15 ÷ 2.4)
9 30
6.81+6.81×99 0.25×185×40 4.4×0.8-3.4×0.8
681 1850 0.8
(9.37+9.37+9.37+9.37)× 2.5 2.37×6.3+2.37×3.7
93.7 23.7
2.5×1.25×0.32 3.8×10.1 2.5×(3.8×0.04) 7.69×101
1 38.38 0.38 776.69
3.8×10.1 0.25×39+0.25 0.125×72 46×0.33+54×0.33
38.38 10 9 33
(8×5.27) ×1.25 6.81+6.81×99 0.25×185×40
52.7 681 1850
6.8×0.75÷0.5 3.75÷0.125–2.75 1.53+23.4÷7.2
10.2 27.25 4,78
9.5×99 13.5×0.98 12.5×8.8
940.5 13.23 110