求200道——300道小数乘小数的计算,
来源:学生作业帮 编辑:神马作文网作业帮 分类:数学作业 时间:2024/11/14 18:01:09
求200道——300道小数乘小数的计算,
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
=207 150 190 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
=324.9 26.961 113.92 7.35 2.2
5.555×5.2 2.22×3.33 7.658×85 36.02×0.3 56.78×8
=28.886 7.3926 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
=68.33 0.89 14.15 1.57 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 0.0592 11.008
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)
1.2 0.18
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
=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
=207 150 190 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
=324.9 26.961 113.92 7.35 2.2
5.555×5.2 2.22×3.33 7.658×85 36.02×0.3 56.78×8
=28.886 7.3926 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
=68.33 0.89 14.15 1.57 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 0.0592 11.008
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)
1.2 0.18
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