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29Word文档格式.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29Word文档格式.docx
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1×
1087×
105-7.9×
1075.06×
102
6.9×
1034.85×
1067.9×
108-8.08×
107
0.000721(精确到万分位)17.0726(精确到十位)
0.564037(精确到0.1)0.00842(精确到0.1)
1
(-—)3(-8)3(-2)2103
2
50000700000056000000-3520000
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7×
104-3×
107-8.9×
105-4.39×
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1039.65×
106-7.4×
106-2.81×
0.00084(精确到万分位)0.426227(精确到十分位)
9.04104(精确到0.1)0.00992(精确到0.01)
(-—)2(-8)3(-3)443
13000800000022000-51800
-800000-48000310000-678000
-3×
1062×
107-3.6×
107-8.79×
9.6×
1086.33×
105-9.4×
1057.28×
106
0.0000791(精确到万分位)0.312321(精确到十位)
5.10248(精确到0.01)0.0924(精确到0.01)
(-—)3(-3)3(-1)482
3
500-1009100000-812000000
4000-200000007100-55000
3×
1027.2×
107-3.33×
105
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1058.23×
1073.4×
102-6.48×
0.0000914(精确到万分位)8213.65(精确到十分位)
18.2532(精确到0.1)0.0887(精确到0.001)
(-—)2(-1)2(-2)363
4000040000000800000-41400
1600000360000027000-91000
1074×
106-2.9×
107-4.72×
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103-5.12×
108-2.8×
107-3.1×
0.0000971(精确到万分位)103.064(精确到十分位)
10.887(精确到0.01)0.00943(精确到0.1)
(-—)2(-6)3(-4)452
-13000-500087000-638000000
1000000040002600000-447000000
-9×
106-6×
108-4.6×
1057.07×
2×
1061.29×
1062.6×
1039.06×
0.0000802(精确到万分位)15088(精确到十位)
5.2679(精确到0.01)0.0602(精确到0.001)
(-—)3(-1)3(-4)233
-60090009000000-529000
80000019001500-8100000
-4×
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1084×
1063.78×
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108-4.33×
103
0.000782(精确到万分位)45630.4(精确到个位)
0.31279(精确到0.1)0.0505(精确到0.01)
(-—)2(-2)3(-3)242
-5000-600006200000-790000
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108-1.2×
1077.99×
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1067.62×
1076.5×
1059.2×
0.0000738(精确到万分位)7.5631(精确到十位)
96.8421(精确到0.1)0.00542(精确到0.001)
(-—)3(-10)3(-4)282
11000-50000002100-56600
-1400000-4300000120000-66700
-6×
106-4×
107-8.4×
107-3.78×
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103-7.45×
106-3.3×
104-5.38×
0.0000709(精确到万分位)65523.3(精确到个位)
0.797933(精确到0.001)0.0678(精确到0.001)
(-—)3(-2)2(-2)232
-7000000900880000-6620000
190000140013000000-388000000
105-6×
1066.5×
1069.27×
6.7×
102-6.58×
105-5.3×
102-7.82×
0.0000719(精确到万分位)99204.8(精确到十分位)
3.80846(精确到0.1)0.00748(精确到0.001)
(-—)3(-5)2(-4)413
-150006004400000-971000000
-200000240000076000-18500
-5×
102-5×
1057.7×
107-3.4×
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103-5.29×
108-6.4×
1037.38×
0.000831(精确到万分位)0.706879(精确到十位)
0.754898(精确到0.01)0.0752(精确到0.001)
(-—)2(-5)2(-4)433
70000010010000000-8490000
17000-7000000081000000-9410000
8×
104-9×
1056.4×
1086.19×
107-5.67×
105-2.4×
1069.18×
0.0000595(精确到万分位)335.593(精确到十位)
0.989269(精确到0.01)0.00803(精确到0.001)
(-—)3(-9)3(-1)383
8000050048000000-77100000
80000-43000004000000-8600
1081×
1048.3×
1023.16×
9.1×
1066.3×
1059.8×
108-3.04×
0.000529(精确到万分位)35565.9(精确到个位)
9.08406(精确到0.01)0.0556(精确到0.1)
(-—)3(-2)3(-2)412
300002000004800-686000000
-190000-5000000850000-390000
1078×
1044×
108-7.55×
1049.47×
1029.5×
1024.52×
0.000694(精确到万分位)0.644391(精确到十位)
91.857(精确到0.001)0.0884(精确到0.001)
(-—)3(-1)2(-1)453
-1400007000470000-975000
-8000000300046000-70500000
-8×
102-7×
1023.9×
104-4.01×
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106-9.18×
105-8.1×
1033.91×
0.0000972(精确到万分位)288.719(精确到十位)
16.9637(精确到0.001)0.0556(精确到0.01)
(-—)2(-5)3(-2)3103
-190000-70004300000-731000000
9000-17000003600-585000
108-8×
1037.3×
103-5.11×
8.7×
1064.86×
104-7.3×
105-9.61×
0.0000894(精确到万分位)5.18767(精确到十位)
0.166393(精确到0.001)0.0787(精确到0.1)
(-—)2(-9)3(-4)252
120000040000051000000-30800000
-13000003700009900-6750000000
106-8×
1069.4×
1068.43×
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1066.26×
106-7.1×
107-2.67×
0.0000702(精确到万分位)145.714(精确到十位)
0.227477(精确到0.001)0.00907(精确到0.1)
(-—)2(-10)2(-2)243
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0.00054(精确到万分位)54821.4(精确到个位)
73.6372(精确到0.1)0.00959(精确到0.001)
(-—)3(-6)2(-3)353
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