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5Word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5Word下载.docx
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8×
108-5×
1087.6×
105-1.29×
106
-2.2×
1053.11×
1046.5×
1057.83×
102
0.000676(精确到万分位)99.2541(精确到十分位)
0.921143(精确到0.001)0.0723(精确到0.1)
6
(-—)3(-6)2(-1)442
5
1300000-40055000-5330000
-19000-90009000-691000000
103-2×
103-8.56×
103
7.6×
106-5.42×
103-6.4×
104-4.08×
0.000597(精确到万分位)0.220915(精确到个位)
98.9623(精确到0.1)0.0966(精确到0.001)
2
(-—)3(-8)3(-4)483
3
70000001000079000-45900
-900000-2000000004700-676000000
-3×
103-1×
1047.5×
107-8×
106-3.98×
1056.5×
1055.14×
108
0.0000909(精确到万分位)29.1295(精确到十位)
1.30959(精确到0.01)0.00694(精确到0.1)
(-—)2(-1)3(-2)453
170000-2002200-8980000
-2000080000000980000-4940000
-4×
105-4×
102-6.8×
1081.26×
8.6×
108-1.06×
1083.7×
103-4.31×
0.00055(精确到万分位)27616.9(精确到个位)
9.1381(精确到0.01)0.0519(精确到0.1)
(-—)2(-10)3(-1)462
-400-9000000020000000-56600
9000000-4500040000-7860000
-6×
1063×
108-9.8×
1052.82×
4.3×
103-7.12×
107-9.6×
104-9.35×
0.000613(精确到万分位)54.5977(精确到十分位)
4.39399(精确到0.1)0.00705(精确到0.001)
(-—)3(-7)3(-3)233
200-600008900000-502000
1200000-28000000420000-29600
6×
105-3×
1024.9×
1037.96×
4×
1061.26×
108-7.2×
107-5.83×
0.0007(精确到万分位)30.7856(精确到十位)
51.2734(精确到0.1)0.0542(精确到0.01)
(-—)3(-3)2(-2)443
-9000-800002900000-32200
-50000003900000008200000-322000000
107-5×
1064.7×
1039.54×
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1076.53×
107-2.4×
1079.29×
0.0000885(精确到万分位)47251.9(精确到个位)
80.4181(精确到0.001)0.00695(精确到0.1)
(-—)3(-7)2(-2)452
190000-20007300-837000
90000410000071000000-5120000
106-5×
1023.1×
102-8.09×
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106-5.24×
106-7.6×
1066.09×
0.00069(精确到万分位)60006.2(精确到十位)
5.82145(精确到0.01)0.00919(精确到0.001)
(-—)2(-4)2(-1)363
-8001000150000-360000
-1000002000005600-9200000
9×
1048×
1071.7×
108-2.12×
6.7×
1034.37×
107-9.5×
1038.64×
0.00097(精确到万分位)9276.48(精确到个位)
0.921304(精确到0.1)0.00527(精确到0.1)
(-—)3(-9)2(-3)472
20000-40000080000000-6740000000
3000450000087000-45700
-5×
104-7×
1076.26×
3.7×
1039.09×
1054.7×
1062.08×
105
0.00092(精确到万分位)80.6391(精确到个位)
0.760659(精确到0.1)0.00708(精确到0.01)
(-—)3(-4)2(-3)352
-150000-9009900-4900000
100000-3300000900-6030000000
1053×
104-7.5×
1051.34×
103-7.06×
1029.12×
0.0000742(精确到万分位)53.7025(精确到十位)
0.822101(精确到0.01)0.0929(精确到0.01)
(-—)3(-5)3(-4)283
-40003000005100-657000000
4001200000003800-65400000
1043×
107-1.2×
106-3.78×
-9.6×
1049.49×
1039.8×
107-9.48×
0.0000804(精确到万分位)86.3615(精确到十位)
0.789121(精确到0.001)0.082(精确到0.001)
(-—)2(-10)3(-3)482
20000000-70049000000-6060000
-11000013000700000-40600
1×
1038×
1022.6×
108-6.52×
102-2.87×
106-1.8×
1081.18×
0.000726(精确到万分位)7.77338(精确到十位)
0.187904(精确到0.01)0.0514(精确到0.1)
(-—)3(-9)3(-3)233
-1300002000037000000-12200
60000290004100000-907000
1055.2×
108-2.45×
2.3×
108-2.61×
1074.7×
1059.15×
0.000619(精确到万分位)1727.51(精确到十位)
0.693505(精确到0.1)0.00523(精确到0.1)
(-—)3(-3)3(-3)232
-120007008100000-17000000
80000-140000000970000-15700
104-3×
108-8.4×
102-8.81×
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105-2.19×
107-9×
1022.74×
0.0000709(精确到万分位)0.94195(精确到十位)
63.825(精确到0.01)0.089(精确到0.01)
(-—)2(-10)2(-1)233
200000-70000230000-780000
-12000000-49000000950000-9740000000
5×
102-9×
1048.1×
1067.06×
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1023.62×
1062.7×
1056.65×
0.000526(精确到万分位)224.762(精确到个位)
62.3477(精确到0.1)0.0523(精确到0.1)
(-—)2(-8)2(-2)4103
-170000007005400000-355000
1700-330008000000-25400000
3×
1034×
108-8.2×
1089.1×
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103-9.42×
103-7.7×
105-4.97×
0.000955(精确到万分位)0.167173(精确到个位)
12.9235(精确到0.1)0.0717(精确到0.1)
(-—)2(-5)2(-2)493
400900940000-9660000
1000000010000079000-582000000
105-1×
105-6.5×
1039.82×
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0.000764(精确到万分位)53769.1(精确到十分位)
4.13609(精确到0.001)0.0566(精确到0.001)
(-—)3(-10)3(-2)222
-400
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