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84Word格式.docx
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1055×
1032.3×
1082.98×
107
-2.3×
105-5.9×
1057.5×
1034.26×
105
0.0000646(精确到万分位)7.20909(精确到十分位)
6.36299(精确到0.01)0.00837(精确到0.01)
(-—)2(-2)2(-4)2102
-110002000000092000-7540000
12000070035000-4010000000
-2×
108-2×
1037.8×
105-4.71×
106
-5.3×
107-2.84×
107-1×
108-4.4×
0.000762(精确到万分位)0.36246(精确到十位)
0.700398(精确到0.001)0.00872(精确到0.01)
1
(-—)2(-7)3(-2)463
4
1800-1000009000000-9940000
-17000004500000055000-28800
6×
105-5×
104-7.1×
1074.73×
102
9.9×
108-2.04×
1061×
105-2.68×
0.0000561(精确到万分位)98070.1(精确到十位)
0.482355(精确到0.1)0.00598(精确到0.1)
(-—)3(-4)2(-1)473
-70009003500-557000000
3002600000002600000-75400000
-5×
1026×
1055.9×
106-9.26×
105-8.3×
1023.4×
1083.46×
0.000571(精确到万分位)84893.6(精确到个位)
90.453(精确到0.01)0.0618(精确到0.001)
(-—)3(-6)2(-4)282
-10000000-1000430000-8780000000
-40000-23000000500-24200
1052×
102-4.8×
106-5.3×
104
1.4×
1084.36×
1048.3×
105-4.64×
0.0000706(精确到万分位)914.062(精确到十分位)
83.6962(精确到0.001)0.00746(精确到0.01)
(-—)3(-9)2(-3)263
900000-10052000000-439000
150043000000065000-7000000
103-9×
108-8.5×
1076.7×
5.4×
108-3.47×
1023.2×
103-8.14×
0.00092(精确到万分位)86092.7(精确到个位)
38.1453(精确到0.001)0.091(精确到0.1)
6
(-—)2(-7)3(-3)342
5
-200000-3000000079000-538000000
-100000-70000005400000-3230000
-1×
107-3×
105-2.1×
103-2.9×
-8.7×
102-6.97×
107-8.4×
108-4.24×
0.0000712(精确到万分位)0.172236(精确到十位)
95.7189(精确到0.01)0.0562(精确到0.001)
(-—)2(-5)2(-3)232
11000-50007300-4000
-2000-700000084000-9730000000
4×
1027×
108-2.4×
1068.23×
-5.6×
1033.56×
1072.9×
1053.15×
0.000756(精确到万分位)93210.4(精确到十位)
8.582(精确到0.001)0.00859(精确到0.1)
(-—)3(-8)3(-1)4103
-3000800000035000000-902000000
-1400-440053000000-34300000
9×
1029×
103-7.2×
1028.46×
-4.5×
105-5.52×
1052.3×
1083.11×
0.0000768(精确到万分位)72187.5(精确到十位)
82.0794(精确到0.01)0.058(精确到0.1)
(-—)3(-8)2(-2)352
-600-10000000550000-242000
-4000000-1700001800000-117000000
1068.75×
4.2×
1087.03×
1062.6×
104-6.82×
0.0000744(精确到万分位)99524.4(精确到个位)
61.4718(精确到0.1)0.00597(精确到0.1)
(-—)2(-6)3(-1)273
-1200000-70049000000-37200000
600000-4000002000000-85900
8×
1066.7×
1024.84×
6.1×
102-8.7×
1029.8×
1075.65×
0.000541(精确到万分位)45119(精确到十分位)
0.216954(精确到0.01)0.0727(精确到0.001)
(-—)2(-3)3(-2)292
1200000-50000007800000-869000000
4000300000300-60000000
2×
1081×
104-8.4×
1.8×
104-7.15×
108-7.4×
104-4.78×
0.0000751(精确到万分位)70.1782(精确到十分位)
75.9232(精确到0.001)0.00745(精确到0.001)
(-—)2(-5)2(-1)313
-100090008200000-497000000
-6000030000750000-331000000
5×
108-4×
103-5.6×
1024×
4.4×
108-6.87×
1041.9×
1022.9×
0.000862(精确到万分位)800.595(精确到十位)
0.210954(精确到0.01)0.00535(精确到0.01)
(-—)2(-8)3(-3)283
16000-3002000-4610000
17000040000670000-5280000000
107-8×
1082.3×
1039.15×
7.1×
1022.28×
108-9.7×
106-1.32×
0.000069(精确到万分位)94.5767(精确到十位)
7.55022(精确到0.01)0.0877(精确到0.01)
(-—)3(-1)2(-3)213
160000-70000004500-52600
-1400-13000091000-11200000
-6×
1064×
105-4.2×
1087.25×
9.6×
1081.4×
107-8.5×
1047.07×
0.000733(精确到万分位)67.1182(精确到十位)
24.7642(精确到0.001)0.0629(精确到0.1)
(-—)2(-2)3(-3)272
500-90000029000-203000000
-19000014000006900-92500000
1084×
1045.4×
1072.84×
7.7×
1088.41×
107-2.3×
106-6.03×
0.0000736(精确到万分位)339.659(精确到十分位)
84.8344(精确到0.1)0.0945(精确到0.1)
(-—)3(-1)3(-2)373
13000006000009700000-440000000
100380043000-85200000
-4×
106-4×
1045.7×
103-2.79×
-6.5×
102-1.53×
1022.1×
105-3.68×
0.0000789(精确到万分位)28.9222(精确到个位)
5.34891(精确到0.001)0.0094(精确到0.01)
(-—)3(-4)2(-2)462
-1900000-6000002700000-8300000
1000000-2300100-207000000
1075×
103-2.7×
1027.25×
5.1×
106-8.58×
1061.1×
104-9.57×
0.000505(精确到万分位)9440.65(精确到个位)
0.434613(精确到0.1)0.0055(精确到0.001)
(-—)2(-6)2(-1)362
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