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101Word文档下载推荐.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101Word文档下载推荐.docx
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102-9×
102-6.6×
1047.63×
8×
1022.6×
107-9.6×
104-8.09×
103
0.000941(精确到万分位)8.5118(精确到十分位)
2.72288(精确到0.001)0.0857(精确到0.001)
1
(-—)3(-8)3(-2)252
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1068×
1058.4×
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102-5.1×
105-9.3×
0.0000615(精确到万分位)0.722007(精确到十位)
0.739117(精确到0.01)0.062(精确到0.001)
(-—)3(-6)2(-2)3102
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7×
102-8×
104-4.1×
1043.41×
106
6×
105-3.75×
102-2.57×
104
0.0000643(精确到万分位)0.170413(精确到十位)
0.769293(精确到0.1)0.0652(精确到0.1)
(-—)2(-2)2(-4)483
5
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1023×
105-2.9×
1068.3×
102
3.1×
104-8.79×
103-2.4×
1083.87×
108
0.000545(精确到万分位)951.511(精确到个位)
0.941231(精确到0.1)0.0976(精确到0.1)
(-—)3(-8)2(-4)252
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108-9×
106-1×
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(-—)3(-10)3(-4)442
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1025.7×
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(-—)3(-1)2(-4)352
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(-—)2(-2)2(-4)3103
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104-5×
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3.2×
102-5.34×
1025.2×
1078.02×
0.000682(精确到万分位)77.2775(精确到个位)
0.638632(精确到0.01)0.0847(精确到0.001)
(-—)2(-9)3(-3)413
140001006600000-6100000
4000-49000035000000-18200
1049.2×
1028.16×
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1056.23×
1044.1×
106-5.32×
0.00074(精确到万分位)0.632888(精确到十分位)
4.2516(精确到0.1)0.0058(精确到0.01)
(-—)2(-2)2(-4)323
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1041.1×
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105-8.6×
103-3.68×
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6.19977(精确到0.01)0.00821(精确到0.001)
(-—)3(-3)2(-2)222
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1074×
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1052×
104-2.77×
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93.2719(精确到0.001)0.0097(精确到0.001)
(-—)2(-4)3(-3)2103
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1064.44×
104-9.9×
1072.17×
0.000548(精确到万分位)589.468(精确到个位)
90.3449(精确到0.1)0.00896(精确到0.1)
(-—)2(-6)3(-4)213
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103-6×
105-4×
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1069.2×
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0.000618(精确到万分位)8701.73(精确到十位)
0.58392(精确到0.1)0.0688(精确到0.01)
(-—)3(-9)2(-4)322
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(-—)3(-9)2(-1)422
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(-—)2(-10)3(-2)253
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8.89984(精确到0.1)0.00854(精确到0.1)
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