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53Word下载.docx
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-1×
1052×
105-8×
1037.41×
-7.7×
1043.92×
108-6.1×
105-7.36×
103
0.000582(精确到万分位)40.8007(精确到十位)
0.467346(精确到0.001)0.0653(精确到0.001)
5
(-—)2(-9)3(-1)262
4
14000000-300000008800-794000
80002200000007300-38700000
7×
1071×
1062.4×
106-8.84×
-3.9×
1058.82×
104-9.4×
1054.29×
105
0.000899(精确到万分位)4471.07(精确到十位)
8.5838(精确到0.01)0.0556(精确到0.01)
(-—)3(-2)3(-4)413
-150000-6000880000-9690000000
6000029000000070000000-17400
5×
106-7×
102-2.4×
1082.15×
4×
1072.75×
1086×
1087.4×
107
0.0000638(精确到万分位)38345.4(精确到十位)
3.89493(精确到0.1)0.00794(精确到0.001)
(-—)3(-10)3(-1)323
2
-130004000000730000-9250000
15000380000072000-1950000000
1×
1069×
1072×
105-8.83×
108
-8.1×
1048.36×
1073.8×
102-4.46×
0.000686(精确到万分位)0.261947(精确到十位)
0.235564(精确到0.1)0.00692(精确到0.01)
(-—)2(-3)2(-3)213
-160006000000022000000-900000000
-8000000-4000060000000-2100000
-9×
1068×
1087.9×
1027.64×
-7.8×
105-8.26×
1069.5×
105-3.69×
106
0.0000724(精确到万分位)0.802375(精确到十位)
4.01255(精确到0.001)0.00807(精确到0.1)
(-—)3(-1)3(-1)3103
-100000-700000049000000-683000000
-200000-5000340000-68500
2×
1041×
1034.4×
1055.72×
1.8×
1073.4×
1082.3×
1051.79×
0.0000917(精确到万分位)0.333273(精确到个位)
4.32801(精确到0.1)0.0843(精确到0.01)
(-—)2(-10)2(-1)282
9000007000000033000-94900
-14005000000008300000-37500000
102-3×
1072.8×
104-5.15×
3.3×
106-8.09×
102-7.9×
104-6.96×
0.000567(精确到万分位)20380.9(精确到十位)
0.998977(精确到0.01)0.0553(精确到0.01)
(-—)2(-9)3(-3)3102
-8000-200008800000-3920000000
-800-25000005100000-949000
1088×
108-8.6×
108-5.91×
-6.4×
1055.8×
1061.6×
1071.14×
0.000589(精确到万分位)0.340527(精确到个位)
0.248051(精确到0.001)0.00751(精确到0.001)
(-—)2(-1)3(-3)373
-1600000010000054000000-30600
-900100000069000000-3120000
-7×
1025.2×
1046.26×
-2.6×
1036.27×
104-6.3×
1025.64×
0.000765(精确到万分位)0.2769(精确到个位)
0.685091(精确到0.01)0.0826(精确到0.1)
(-—)2(-10)3(-4)292
3000060002500000-244000
-110000048000410000-89600000
6×
102-8×
1049.4×
107-5.87×
-4.8×
1043.4×
108-1.8×
102-2.97×
0.0000769(精确到万分位)17221.5(精确到个位)
0.191902(精确到0.01)0.00536(精确到0.1)
(-—)3(-1)2(-1)332
-600-2000960000-803000000
200000003800002400000-3450000000
3×
108-9×
1057.5×
1023.95×
9.5×
1033×
106-7.5×
1069.66×
0.0000737(精确到万分位)3.82537(精确到个位)
5.04903(精确到0.01)0.00526(精确到0.001)
(-—)3(-10)3(-4)313
200000-8000002500000-48400
8000000-210000004100000-697000000
-5×
102-7×
107-7.07×
2.9×
102-3.1×
1056.8×
104-6.17×
0.000536(精确到万分位)7380.7(精确到十分位)
0.720126(精确到0.01)0.081(精确到0.1)
6
(-—)2(-2)2(-3)333
-3000000900000093000-978000
-1000-24000300-25900
107-6.4×
107-6.42×
1042.65×
1054.2×
108-6.87×
0.000768(精确到万分位)459.581(精确到十分位)
0.55333(精确到0.1)0.0741(精确到0.1)
(-—)3(-6)3(-1)322
80009006000000-28800
6000000-38000018000-3700000000
1055×
102-1.6×
1033.74×
4.1×
1078.85×
106-3×
108-7.11×
0.00061(精确到万分位)639.542(精确到十分位)
27.9038(精确到0.01)0.00909(精确到0.01)
(-—)3(-6)3(-4)3102
130008000096000-64600
-6000000-130000023000-84700000
1073×
1056.5×
108-6.15×
-6.7×
1057.61×
103-1.2×
1056.92×
0.0000548(精确到万分位)3400.4(精确到十分位)
95.0523(精确到0.001)0.0759(精确到0.1)
(-—)3(-9)2(-4)363
400000-80000003400000-5390000
-140014002000-427000000
8×
106-5×
104-1.9×
1021.49×
-2.8×
105-5.28×
105-9.2×
1062.63×
0.00054(精确到万分位)3.12298(精确到十分位)
0.957497(精确到0.1)0.0675(精确到0.01)
(-—)2(-4)3(-1)413
1800-5000003000-8120000000
100000-1400600000-522000000
1074×
1077.7×
103-7.11×
8.7×
105-8.88×
105-4×
106-1.08×
0.000557(精确到万分位)33.8819(精确到个位)
8.44623(精确到0.1)0.0883(精确到0.01)
(-—)3(-1)2(-4)243
-700000-10000710000-51000000
15000220000003700-140000
1021×
105-9.84×
106-8.13×
105-8.9×
105-4.06×
0.000083(精确到万分位)55524.6(精确到个位)
8.01612(精确到0.001)0.00545(精确到0.01)
(-—)3(-8)2(-4)323