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134Word文件下载.docx
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1056×
102-6.1×
103-9.65×
102
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1059.38×
1055.6×
1074.39×
104
0.0000779(精确到万分位)0.917163(精确到十分位)
13.2555(精确到0.01)0.0508(精确到0.001)
1
(-—)3(-7)2(-1)293
5
17000000-5000017000000-5400000
50003000610000-24600
6×
1086×
108-4.6×
104-4.09×
106
102-1.08×
1058.2×
103-3.72×
0.00051(精确到万分位)94.5485(精确到个位)
0.667779(精确到0.001)0.0567(精确到0.01)
(-—)2(-6)2(-3)422
4
1500000070000005900000-6340000000
-18000002200100-6460000000
1×
105-3×
107-4.4×
108-7.44×
8.6×
1022.65×
1064.66×
0.000507(精确到万分位)37.8998(精确到十位)
32.4428(精确到0.001)0.0729(精确到0.1)
(-—)3(-5)3(-1)3103
1500000020079000000-84000000
-500000-370000780000-28500
-1×
1087×
1048.2×
1054.55×
103
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108-5.65×
106-4.9×
105-3.56×
0.0000809(精确到万分位)6.96563(精确到十位)
8.91014(精确到0.1)0.00725(精确到0.1)
(-—)3(-3)3(-2)4102
-1900000900009800-5030000000
-1002100000008200-8790000000
1035×
1078.9×
1025.63×
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1063.08×
102-1.3×
1034.08×
0.000994(精确到万分位)7.27872(精确到个位)
0.972456(精确到0.1)0.066(精确到0.001)
(-—)3(-4)3(-2)472
1000-500120000-119000
-200000001200000550000-431000
-8×
105-1×
1029.5×
1087.64×
4.6×
1056.42×
1042.2×
102-3.84×
0.0000658(精确到万分位)89342.8(精确到十分位)
53.2221(精确到0.01)0.00648(精确到0.1)
(-—)2(-9)2(-3)253
900300009000-4420000
5000008000000320000-96400
106-8×
107-8.7×
1028.32×
8.3×
1026.28×
104-3.7×
1046.25×
0.000627(精确到万分位)0.491785(精确到个位)
14.8775(精确到0.1)0.00867(精确到0.01)
(-—)2(-1)3(-3)433
-190000600000001400000-61100
40000006000078000-760000000
-4×
103-6×
1046.7×
104-7.89×
8.8×
1036.12×
1078.1×
105-8.59×
0.0000569(精确到万分位)7877.74(精确到十分位)
17.1591(精确到0.01)0.0644(精确到0.01)
6
(-—)3(-7)3(-4)413
-700-100250000-1470000
-8000-270026000000-788000
107-3.1×
1067.84×
108
1.2×
1069.35×
106-4.5×
1044.63×
0.000808(精确到万分位)48.4072(精确到个位)
8.8402(精确到0.1)0.00547(精确到0.1)
(-—)2(-9)2(-3)4102
-200800032000000-970000
-100000-11000008100-95000
8×
107-8×
1037.5×
103-8.04×
-9.8×
1086.98×
106-4.4×
1061.76×
0.000729(精确到万分位)8.35466(精确到个位)
0.914827(精确到0.01)0.0092(精确到0.01)
(-—)3(-2)3(-4)333
140000-2000000090000000-795000000
700-150000000270000-7200000
5×
1023×
102-1.2×
105-3.73×
-7.3×
1067.39×
108-2.36×
0.000895(精确到万分位)807.105(精确到十分位)
29.5807(精确到0.001)0.00912(精确到0.1)
(-—)2(-6)2(-1)242
-17000090047000-7110000000
12000330021000000-84100
105-1.6×
1082.6×
8.4×
108-4.12×
104-4.1×
106-8.3×
0.0000799(精确到万分位)4871.46(精确到个位)
0.651771(精确到0.001)0.0096(精确到0.001)
(-—)2(-3)2(-2)212
-800-80092000-881000000
-160000001900000007800000-4090000
-6×
1058×
1032.9×
103-3.39×
9.2×
1063.32×
1085.3×
102-8.39×
0.0000869(精确到万分位)81695.9(精确到十分位)
0.559157(精确到0.001)0.00892(精确到0.01)
(-—)2(-1)2(-2)333
30007000074000-900000
-13000900000026000000-41300000
105-9×
1085.9×
1023.83×
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104-6.69×
106-9.9×
107-9.23×
0.000896(精确到万分位)0.109685(精确到十分位)
0.299367(精确到0.001)0.0664(精确到0.01)
(-—)3(-4)3(-2)213
20000-20099000-882000000
-16000000100028000-1110000
106-1×
102-4.5×
1057.7×
5.6×
104-9.11×
1047×
1062.66×
0.0000616(精确到万分位)0.151209(精确到十位)
66.5304(精确到0.01)0.00915(精确到0.01)
(-—)2(-6)2(-2)393
-14000-80000000660000-339000000
10000100005900000-785000000
1053×
108-2.8×
102-8.59×
3.2×
1048.06×
104-4.7×
1027.58×
0.0000978(精确到万分位)1620.75(精确到十分位)
0.513361(精确到0.1)0.0058(精确到0.01)
(-—)3(-8)2(-3)422
-600008000001600-79800000
17000240000002000-8600000000
106-6×
1072.3×
1043.71×
3.6×
1054.67×
1068.1×
107-6.1×
0.000713(精确到万分位)9957.27(精确到个位)
48.6321(精确到0.01)0.0674(精确到0.01)
(-—)2(-1)3(-1)283
1000060000062000-1460000000
140000003900000001900-7670000
1078×
1074.2×
105-4.41×
1.7×
1043.17×
1038.4×
1078.84×
0.0000917(精确到万分位)44.9551(精确到十分位)
0.314503(精确到0.01)0.00905(精确到0.01)
(-—)3(-6)3(-3)353