人教版七年级数学上册科学记数法和近似数综合练习题精选127Word格式文档下载.docx
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人教版七年级数学上册科学记数法和近似数综合练习题精选127Word格式文档下载.docx
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1027×
1073.1×
108-5.99×
107
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104-6.94×
106-6.2×
107-4.64×
0.000711(精确到万分位)1554.63(精确到十位)
29.2149(精确到0.1)0.00856(精确到0.1)
(-—)2(-3)3(-2)3103
4
14000000-6000000580000-5140000
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103-9×
1025.4×
107-5.58×
106
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106-7.51×
1024.4×
1036.05×
0.0000992(精确到万分位)43.0212(精确到个位)
48.1621(精确到0.1)0.0542(精确到0.01)
5
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100000016000030000-322000
1084×
1067.74×
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1089.54×
105-7.5×
1054.67×
0.000514(精确到万分位)291.538(精确到十分位)
65.3963(精确到0.001)0.00955(精确到0.01)
(-—)2(-5)2(-1)332
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106-3×
1086.9×
1046.35×
103
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106-1.5×
105-2.92×
0.0000737(精确到万分位)153.425(精确到个位)
0.776503(精确到0.01)0.0782(精确到0.001)
(-—)3(-5)3(-1)242
600700000250000-1020000000
10021000000065000000-4970000000
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102-5.19×
104-1.8×
106-2.49×
0.0000607(精确到万分位)0.81624(精确到个位)
0.820584(精确到0.1)0.0677(精确到0.01)
(-—)2(-4)2(-1)413
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1081×
108-4.9×
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102-5.6×
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107-6.56×
0.0000528(精确到万分位)7.73184(精确到个位)
41.8836(精确到0.01)0.00634(精确到0.001)
(-—)3(-4)3(-1)362
3
13000000-10000004600000-3360000000
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108-4.92×
0.0000739(精确到万分位)25125(精确到个位)
0.541274(精确到0.01)0.0665(精确到0.001)
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4×
106-8×
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9.3×
106-3.21×
106-2.2×
0.0000954(精确到万分位)66.4836(精确到十分位)
0.654604(精确到0.001)0.0829(精确到0.001)
(-—)2(-8)2(-3)442
190000300006000000-92400000
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6×
108-7×
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104-1×
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103-8.96×
105
0.0000517(精确到万分位)8.99646(精确到十位)
0.478874(精确到0.1)0.00687(精确到0.01)
(-—)2(-1)3(-4)473
1100-40000770000-48000000
60000027000062000000-3210000000
103-3×
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1051.92×
108
0.0000781(精确到万分位)70.2624(精确到十位)
0.328217(精确到0.01)0.0993(精确到0.001)
(-—)3(-6)2(-1)413
110000-1000000026000-577000
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1046×
105-5.26×
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1067.53×
1082.7×
102-9.76×
0.0000726(精确到万分位)2.67988(精确到十分位)
6.09056(精确到0.001)0.0509(精确到0.01)
(-—)3(-4)3(-2)493
800000090000740000-966000000
190000-1100000099000000-5400
107-1×
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105-1.42×
0.000663(精确到万分位)74.9732(精确到十位)
20.8388(精确到0.001)0.00743(精确到0.001)
(-—)3(-5)3(-3)272
900000040003200000-532000
190000440000000650000-26500000
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105-2.1×
103-6.96×
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105-9.3×
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0.0000582(精确到万分位)18183.4(精确到十位)
44.8109(精确到0.1)0.0669(精确到0.1)
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1200000-3800050000-508000000
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0.0000756(精确到万分位)669.415(精确到个位)
78.6852(精确到0.001)0.0952(精确到0.001)
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21.7715(精确到0.1)0.00726(精确到0.001)
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0.0000854(精确到万分位)26.4308(精确到十分位)
5.91922(精确到0.1)0.00641(精确到0.01)
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0.0000902(精确到万分位)4.68427(精确到十位)
28.3839(精确到0.01)0.00711(精确到0.1)
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76.0828(精确到0.001)0.0834(精确到0.01)
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