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4Word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4Word格式文档下载.docx
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-8×
104-6×
1073.7×
1072.51×
-6.6×
1045.11×
1054.7×
1083.71×
108
0.000566(精确到万分位)0.368075(精确到个位)
0.137315(精确到0.001)0.0738(精确到0.01)
5
(-—)3(-8)2(-1)412
600001006400-56000
-80011000014000-496000000
-6×
1065×
1044.1×
104-6.83×
102
-8.2×
103-2.25×
102-8.7×
107-3.02×
0.0000596(精确到万分位)30.1496(精确到十位)
0.522585(精确到0.1)0.0625(精确到0.1)
(-—)2(-3)2(-1)483
-10000001002300000-8850000000
-2000000037004000000-552000000
8×
104-8×
1037.5×
108-6×
1.2×
105-7.82×
1058.1×
103-3.19×
104
0.0000639(精确到万分位)15.1564(精确到十分位)
83.3631(精确到0.001)0.00637(精确到0.01)
1
(-—)2(-8)3(-4)332
2
-4000-600000410000-924000
30000-39000000038000-19200
2×
102-9×
1023.5×
102-1.99×
-7.2×
102-1.55×
1028×
1069.72×
0.000828(精确到万分位)9067.96(精确到十位)
4.27014(精确到0.01)0.0706(精确到0.1)
(-—)3(-7)3(-2)333
-1500050050000-286000000
1000000-390029000000-8000000
1×
107-1×
104-4×
1068.3×
106
-9.3×
1032.49×
1069.2×
106-3.31×
0.000778(精确到万分位)3.693(精确到十分位)
8.70212(精确到0.1)0.00924(精确到0.1)
(-—)2(-1)2(-2)283
1100000-600006800-495000000
-60000002400000004800-6600
-7×
106-2×
1021.1×
105-5.02×
7.8×
105-8.96×
1088.8×
1056.68×
0.000054(精确到万分位)7160.37(精确到十分位)
22.0548(精确到0.01)0.0717(精确到0.1)
(-—)2(-7)3(-1)222
150000070019000-951000
-120000-14000000870000-130000000
1081×
103-1×
1048.57×
4.6×
104-7.77×
103-9.7×
1024.82×
103
0.00065(精确到万分位)9.68874(精确到十分位)
40.9438(精确到0.001)0.0929(精确到0.1)
(-—)3(-2)2(-3)322
1000000400004200000-8920000000
170000-330000009500000-1790000
103-5×
1058.3×
102-8.88×
5.4×
103-9.9×
104-1.2×
1065.03×
0.0000736(精确到万分位)3.27017(精确到十分位)
0.560795(精确到0.01)0.00565(精确到0.001)
(-—)2(-3)2(-3)342
-15000-100660000-80000000
8000000-280000000350000-81300
-5×
1043×
102-3.1×
105-2.95×
1042.36×
107-9.7×
1035.17×
0.0000597(精确到万分位)22550.3(精确到十分位)
38.4432(精确到0.01)0.0613(精确到0.001)
(-—)3(-8)2(-3)372
-6000000100000007300-445000
120004300810000-9220000000
102-3×
1063.2×
1028.36×
7.2×
107-4.5×
1049.9×
1057.83×
0.0000691(精确到万分位)0.958986(精确到个位)
0.454954(精确到0.01)0.00772(精确到0.1)
(-—)2(-9)3(-2)312
-60000-2008700000-276000000
-2000360000000270000-7200000
-3×
1077×
105-8.1×
105-2.36×
1.9×
103-2.38×
106-4.7×
1089.81×
0.000784(精确到万分位)353.904(精确到十位)
33.2229(精确到0.01)0.0797(精确到0.001)
(-—)3(-6)3(-4)432
17000400009700000-819000
-400000-32000006400000-6500000000
102-8×
106-5.2×
1035.53×
-8.6×
106-1.96×
1037.2×
105-5.87×
0.0000908(精确到万分位)0.937095(精确到个位)
0.968751(精确到0.01)0.00852(精确到0.001)
(-—)2(-1)3(-3)232
900300000840000-33600
18000000400000072000000-4000000
1024×
1031.2×
1069.73×
-9.7×
1056.05×
1029.8×
105-1.98×
0.0000989(精确到万分位)37.4371(精确到十位)
1.19448(精确到0.001)0.0576(精确到0.1)
(-—)3(-8)2(-4)3102
-10000030041000-1000000000
170000001400066000000-888000
-1×
1083×
104-7.5×
106-9.68×
1035.4×
1085.6×
1089.4×
0.000594(精确到万分位)0.971184(精确到十分位)
0.395065(精确到0.1)0.00988(精确到0.01)
(-—)2(-3)2(-2)313
-8000000100780000-8500000
-200000032000000076000-7990000000
1037.1×
5.1×
1077.88×
106-2.5×
1038.04×
0.0000732(精确到万分位)3050.08(精确到个位)
0.621277(精确到0.1)0.0812(精确到0.01)
(-—)3(-8)2(-4)433
130000-7003800000-844000000
7000000-15000086000-79200000
1022.9×
1027.26×
-3.3×
1038.34×
106-2.1×
1026.69×
0.000767(精确到万分位)33.6607(精确到个位)
67.1253(精确到0.1)0.0816(精确到0.001)
(-—)3(-6)3(-4)382
-1700-80021000-7850000
-1900004400000011000000-5060000000
1025.2×
105-5.04×
6.3×
1068.2×
104-1.7×
106-8.16×
0.000701(精确到万分位)688.388(精确到十位)
81.7262(精确到0.001)0.00873(精确到0.01)
(-—)3(-9)3(-2)342
1000300000410000-94300000
-800000014004000-39600000
5×
106-4.1×
1038.59×
1.1×
1084.99×
1064.9×
105-2.72×
0.0000936(精确到万分位)5.63924(精确到个位)
54.2028(精确到0.01)0.0517(精确到0.01)
(-—)2(-5)3(-3)313
1、用科学记数法表示下列各数
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