初一数学上册科学计数法和近似数7Word文档格式.docx
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-2×
103-4×
108-7.7×
107-5.16×
104
-1.7×
1071.89×
1052.2×
107-5.56×
107
0.000747(精确到万分位)3.77172(精确到十位)
7.90235(精确到0.001)0.00772(精确到0.01)
2
(-—)2(-1)3(-1)382
-500000-2007400000-324000
200-7000067000-3590000000
-9×
103-6×
103-3.2×
1066.49×
105
8.5×
1022.03×
1025×
1027.02×
0.0000569(精确到万分位)445.284(精确到十位)
0.70649(精确到0.001)0.075(精确到0.1)
(-—)2(-10)3(-4)433
-140000-60002300000-1960000
18000120084000000-55300000
3×
1055×
104-8.9×
1068.77×
106
5.7×
1072.71×
1073.8×
105-5.14×
0.000744(精确到万分位)37202.7(精确到十分位)
63.7622(精确到0.1)0.0087(精确到0.001)
5
(-—)3(-7)3(-3)253
-700030000008200-9790000000
1300400000043000000-68400
-7×
108-5×
1071.3×
108-7.54×
-2.2×
104-6.31×
1082.5×
103-9.74×
102
0.0000916(精确到万分位)99275.5(精确到十分位)
93.6372(精确到0.01)0.00511(精确到0.001)
1
(-—)2(-4)2(-1)262
-70080000006200000-27000
90000440060000000-21000
1×
103-9×
104-5.3×
105-1.7×
-3.8×
1062.74×
1069.3×
1065.79×
0.000689(精确到万分位)92359.2(精确到十位)
0.85385(精确到0.01)0.00972(精确到0.1)
(-—)2(-5)2(-1)243
1500000-1000000078000-4000
90000043000008600000-518000000
-6×
105-1×
104-4×
105-7.94×
-8.9×
105-2.62×
105-9.4×
108-5.67×
0.000056(精确到万分位)33.8247(精确到十分位)
3.71175(精确到0.1)0.0835(精确到0.01)
(-—)2(-2)3(-1)382
8000002000041000000-378000000
110000042000032000000-163000000
2×
1029×
1064×
1024.33×
9.2×
1069.81×
104-1.9×
1037.63×
0.000673(精确到万分位)3194.28(精确到个位)
21.0794(精确到0.01)0.00993(精确到0.01)
(-—)2(-9)3(-4)382
-13000-6000085000000-111000
90000016000000073000000-6000
107-6×
103-9.46×
1.7×
105-7.87×
107-8×
1031.88×
0.000656(精确到万分位)974.954(精确到十分位)
56.3853(精确到0.1)0.00747(精确到0.1)
(-—)3(-10)2(-2)442
17000000-900000470000-865000000
-1800-50008400-9520000000
5×
108-3×
106-7.4×
103-3.54×
3.7×
104-4.42×
1039.4×
104-3.56×
0.0000605(精确到万分位)333.674(精确到十分位)
70.1159(精确到0.01)0.00976(精确到0.001)
(-—)3(-4)3(-3)393
13000001001100000-27800
90000-19000068000-150000000
8×
104-6×
1052.9×
108-2.01×
7.2×
108-1.55×
104-2.8×
0.0000526(精确到万分位)31.9372(精确到十分位)
0.976367(精确到0.001)0.00729(精确到0.1)
(-—)2(-6)2(-4)263
-200000-1000000010000000-9190000000
-30000015000660000-863000
1034.9×
105-8.74×
1059.42×
103-5.3×
1075.78×
0.000595(精确到万分位)0.736511(精确到个位)
7.79132(精确到0.1)0.0988(精确到0.1)
(-—)3(-5)3(-4)293
-5000010000081000000-359000
180000-2100000004700-49800000
1036.2×
103-6.7×
1031.55×
1031.1×
104-9.7×
0.000534(精确到万分位)1.82311(精确到十分位)
67.4374(精确到0.1)0.0964(精确到0.1)
(-—)3(-1)3(-1)442
17000000-100036000-14400
15002900000004700000-82800
-4×
1048×
108-6.4×
105-6.88×
-9.9×
105-4.32×
107-4.4×
1057.63×
0.0000623(精确到万分位)0.307106(精确到个位)
0.184903(精确到0.1)0.089(精确到0.001)
(-—)3(-2)3(-1)3103
-1900000060000070000-6340000000
-130000-130040000-46600000
1071×
1083.8×
106-5.95×
-4.9×
105-8.35×
105-5.1×
104-1.71×
0.0000817(精确到万分位)0.324206(精确到个位)
0.644309(精确到0.01)0.0846(精确到0.1)
(-—)2(-3)3(-4)222
30010000000630000-90400
-400000450000840000-8460000
6×
1084×
1089.5×
1072.86×
5.9×
1051.08×
104-4.3×
107-7.13×
0.0000773(精确到万分位)2653.38(精确到十位)
1.73006(精确到0.1)0.00764(精确到0.01)
(-—)3(-6)3(-4)452
-20000600000045000000-1110000000
-16000-500000003600-9200
1022×
1045.5×
103-2.31×
2.6×
107-5.12×
1083.9×
104-2.95×
0.0000675(精确到万分位)824.128(精确到个位)
0.171038(精确到0.01)0.00961(精确到0.1)
6
(-—)3(-7)3(-4)283
-6000-2005000-17700000
2000000290000006900-3360000
1046×
107-7.7×
106-1.27×
1.1×
102-6.24×
103-3.6×
106-2.84×
0.000569(精确到万分位)0.286831(精确到十分位)
0.420115(精确到0.01)0.0687(精确到0.001)
(-—)3(-6)3(-2)213
300060003400000-22900000
300000-32000000029000000-68900000
1088×
1078.9×
1044.95×
-5.9×
1067.2×
104-8.2×
1031.39×
0.00053(精确到万分位)89977.2(精确到个位)
96.6711(精确到0.01)0.00549(精确到0.1)
(-—)3(-3)3(-4)223