初一数学上册科学计数法和近似数197文档格式.docx
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初一数学上册科学计数法和近似数197文档格式.docx
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1072×
1035.2×
1029.29×
103
4.8×
107-3.25×
106-5.6×
1086.36×
0.000504(精确到万分位)0.976458(精确到十分位)
6.46441(精确到0.001)0.0556(精确到0.1)
1
(-—)2(-9)2(-1)422
5
-70000060000500000-3160000000
180007000000048000-3630000000
-5×
105-6×
102-9.4×
105-1.79×
106
6.6×
104-6.79×
1066×
107-6.9×
102
0.0000814(精确到万分位)0.663287(精确到个位)
0.615567(精确到0.01)0.0788(精确到0.01)
(-—)2(-6)3(-4)293
4
400-2008000000-90400
-300-450000035000000-874000000
-6×
1045×
108-2.7×
108-3.21×
8.4×
1072.83×
1059.6×
106-9.33×
0.000927(精确到万分位)13.3187(精确到十分位)
26.3672(精确到0.1)0.0523(精确到0.001)
(-—)2(-3)2(-2)313
-170020000003000-24900
-100100360000-1160000
1056×
103-6.8×
1087.61×
105
4.4×
105-9.41×
1062.09×
0.0000629(精确到万分位)90.5038(精确到个位)
8.98253(精确到0.01)0.0579(精确到0.001)
(-—)3(-1)3(-2)283
20000-3000000070000000-312000
100000900000008000-5980000000
-8×
108-3.8×
102-5.58×
-5.2×
107-7.83×
108-7.7×
108-5.44×
0.000587(精确到万分位)3160.21(精确到个位)
90.0434(精确到0.1)0.00631(精确到0.01)
(-—)2(-9)2(-4)2102
140001000000800000-7190000
500000-180000000830000-27000
-3×
103-1×
106-8.8×
1064.13×
-9.4×
1082.54×
106-1×
1032.25×
108
0.0000686(精确到万分位)8508.18(精确到个位)
0.710994(精确到0.1)0.05(精确到0.001)
(-—)2(-9)3(-1)352
-18000000900061000-900
7000-2300000056000-194000
-7×
1075×
105-4.6×
108-3.07×
-3.2×
1045.09×
1056.7×
106-1.74×
0.000635(精确到万分位)0.73357(精确到个位)
6.75683(精确到0.1)0.0724(精确到0.01)
(-—)3(-9)3(-4)242
-4000050000340000-6470000000
-20005000008400-90400000
1×
1065×
102-6.5×
1066.27×
8.5×
1061.48×
1022.3×
1042.01×
0.0000797(精确到万分位)52626.4(精确到个位)
55.8696(精确到0.01)0.00728(精确到0.1)
(-—)3(-5)2(-3)2102
-200-500008600000-862000000
-100031000030000-2460000
2×
1035×
107-7.3×
1049.64×
4×
1075.29×
1038.9×
1027.83×
0.0000888(精确到万分位)48630.4(精确到十位)
58.7737(精确到0.01)0.00963(精确到0.1)
6
(-—)2(-8)3(-3)482
50000700000035000000-2800000000
80000-300000007600-559000
104-9×
103-6.7×
1037.66×
5.7×
104-4.75×
1088.2×
102-7.7×
0.0000749(精确到万分位)5.11902(精确到十分位)
0.437315(精确到0.1)0.00874(精确到0.01)
(-—)2(-5)3(-2)312
-110000001000001800-593000000
-9000036007900000-6980000
8×
106-8×
107-9.3×
1068.89×
-8.6×
108-3.41×
103-5.9×
102-8.98×
0.00067(精确到万分位)914.877(精确到十分位)
0.503222(精确到0.01)0.00716(精确到0.001)
(-—)3(-7)2(-1)453
1000030005900000-275000000
-300000014000007800-41100000
1087×
107-4.7×
1057.51×
5.9×
107-6.1×
1074.5×
1043.55×
0.0000585(精确到万分位)0.59644(精确到个位)
5.79345(精确到0.1)0.00611(精确到0.1)
(-—)2(-7)3(-3)433
14000000-90000540000-1930000000
2000320077000000-32700
3×
107-7×
105-3.7×
1045.78×
1062.61×
107-5.7×
1075.92×
0.000644(精确到万分位)69667.1(精确到十位)
0.553039(精确到0.1)0.0679(精确到0.001)
(-—)2(-6)2(-3)472
700060028000-7900000
190000340000006600000-34000000
1031×
106-7.4×
107-1.41×
-8.4×
1063.18×
1031.9×
106-3.51×
0.000781(精确到万分位)47834.3(精确到十位)
0.858317(精确到0.01)0.00924(精确到0.001)
(-—)2(-8)3(-4)452
-18006000083000-909000
500-4900000002700000-3420000000
1036×
1047.5×
106-5.1×
2.2×
1045.85×
1077.7×
1055.41×
0.0005(精确到万分位)11.6525(精确到十分位)
34.8171(精确到0.001)0.00614(精确到0.001)
(-—)3(-10)2(-2)413
500-1000000076000000-47000000
-9000000-3900008100-25700
1063.7×
1084.6×
3.5×
1073.93×
1062.6×
102-5.71×
0.000872(精确到万分位)430.195(精确到十位)
4.62547(精确到0.1)0.0782(精确到0.1)
(-—)2(-3)3(-4)213
600060000003600-268000
4000000420003100000-47500
107-5×
1082.7×
108-6.96×
102-6.91×
104-7.9×
1036.59×
0.0000655(精确到万分位)40918.9(精确到十位)
8.8217(精确到0.001)0.0601(精确到0.1)
(-—)2(-8)3(-2)223
8000000-800000092000-45800000
200000-2600710000-193000000
1076×
1023.3×
107-6.27×
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108-4.91×
1087.1×
1074.95×
0.0000522(精确到万分位)0.806217(精确到个位)
7.01643(精确到0.001)0.00633(精确到0.001)
(-—)2(-10)3(-4)283
-6000000-1002
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