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68Word下载.docx
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4×
107-7×
106-7.1×
1024.36×
106
-6.7×
1043.35×
1021.5×
1061.03×
0.000844(精确到万分位)92360.5(精确到十分位)
0.299838(精确到0.001)0.0052(精确到0.001)
1
(-—)3(-7)2(-4)3103
3
1700000-20000000470000-5800
8000000-490000004000-715000
-3×
107-9×
1022.9×
1046×
108
3.3×
1064.31×
107-1.4×
108-9.91×
103
0.0000685(精确到万分位)390.714(精确到十分位)
9.94534(精确到0.001)0.0831(精确到0.1)
4
(-—)2(-2)3(-2)393
-6000006000005500000-9170000000
1100000-600001400000-69300000
105-4×
1031.7×
104-9.9×
-1.8×
1025.68×
103-3.9×
1077.31×
102
0.000976(精确到万分位)8367.78(精确到个位)
0.319187(精确到0.001)0.0735(精确到0.1)
(-—)2(-2)3(-4)483
19000-50000041000-290000
18000000-410000005400-3660000000
5×
1035×
104-6.4×
107-7.45×
107
-3.7×
1021.69×
107-5.9×
106-1.51×
0.00005(精确到万分位)1.60545(精确到个位)
90.8958(精确到0.01)0.0678(精确到0.01)
(-—)2(-7)3(-3)372
-110000600057000000-3200000000
90000010000091000-455000000
-1×
1079×
1036.1×
103-7.76×
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104-1.24×
102-1.9×
1053.19×
0.000705(精确到万分位)4.40169(精确到个位)
0.21422(精确到0.001)0.0535(精确到0.001)
(-—)3(-9)3(-1)333
-10000800540000-405000
-110001200004500000-32800000
1075×
1061.9×
103-3.18×
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1023.9×
102-3.2×
1056.49×
0.0000531(精确到万分位)9.20472(精确到十分位)
6.86622(精确到0.001)0.0574(精确到0.01)
(-—)2(-7)2(-4)313
18000000700056000-3750000
-170000003300000600-868000
-2×
1054×
1024.6×
1045.97×
3×
1036.45×
107-7.3×
108-8.09×
0.000736(精确到万分位)4.48512(精确到十位)
0.502888(精确到0.001)0.00816(精确到0.1)
(-—)3(-1)3(-2)223
-4000400002900-487000000
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-4×
102-2×
1079.4×
1024.78×
-3.1×
1073.02×
103-2.6×
1047.66×
0.0000872(精确到万分位)0.22124(精确到个位)
1.67231(精确到0.01)0.0651(精确到0.01)
(-—)3(-4)2(-2)312
-15000-4007700-9270000
1800-1600092000000-945000
106-4×
106-2.8×
1064.14×
6.7×
1074.82×
1033.2×
104-3.17×
0.000766(精确到万分位)60.6745(精确到十位)
7.25284(精确到0.1)0.00801(精确到0.001)
(-—)3(-6)2(-3)352
1800000-5000000340000-63700000
15000000-300000008400-377000000
6×
108-3×
108-9.6×
103-6.73×
1.3×
1076.37×
106-6.4×
1025.45×
0.000911(精确到万分位)133.929(精确到十位)
3.73757(精确到0.001)0.00916(精确到0.01)
(-—)3(-9)2(-3)4103
-170000-6004000000-236000000
40000-60000150000-145000000
-9×
108-2×
1071.3×
102-4.62×
6.4×
106-7.17×
1065.5×
104-8.55×
0.000618(精确到万分位)2.34687(精确到十位)
22.0046(精确到0.001)0.00997(精确到0.01)
(-—)3(-5)3(-1)243
-40050009100000-18200000
-11000002600007300000-666000
107-8×
1075.9×
105-2.85×
1.7×
105-9.22×
107-8.5×
1046.69×
0.000563(精确到万分位)9.04076(精确到十位)
60.5816(精确到0.1)0.0683(精确到0.1)
(-—)3(-9)3(-1)383
120000-300021000000-45100000
70000-3500000073000000-477000000
1026×
1058.4×
1063.78×
-7.6×
103-8.91×
1032.3×
105-2.55×
0.000537(精确到万分位)86749(精确到十分位)
1.68275(精确到0.1)0.0855(精确到0.1)
(-—)2(-8)2(-4)272
-170000-80000012000000-823000
-4000002700000059000-956000000
-5×
108-5×
1037.9×
102-5.5×
-5.1×
1068.88×
103-6.3×
108-4.48×
0.0000635(精确到万分位)5803.83(精确到个位)
7.98902(精确到0.001)0.00621(精确到0.01)
(-—)2(-2)2(-2)423
-10000-6000067000-785000000
-110021006200000-87200
1085×
1058.5×
103-3.33×
2.7×
1061.4×
1046.6×
1065.54×
0.0000808(精确到万分位)86694.2(精确到个位)
0.461588(精确到0.001)0.00618(精确到0.001)
(-—)3(-6)2(-2)3102
300000010000007800-182000
700000-39000000085000000-584000
2×
1061×
1044.4×
1045.52×
4.6×
1034.34×
1022.5×
105-2.62×
0.0000837(精确到万分位)0.275829(精确到十位)
94.345(精确到0.001)0.0528(精确到0.001)
(-—)2(-1)3(-1)2102
10000000-20098000-1420000
700000-30000000019000000-1260000
1064×
105-6×
1039.38×
-3.6×
106-1.18×
1023×
1073.23×
0.000906(精确到万分位)1.91346(精确到十位)
7.19371(精确到0.001)0.00547(精确到0.001)
2
(-—)3(-5)2(-2)4103
-900-70000094000000-2280000000
-2000-170026000-65000
103-7×
102-9×
1055.57×
108-6.28×
102-4.4×
1039.34×
0.000647(精确到万分位)0.108541(精确到十分位)
0.448875(精确到0.001)0.0831(精确到0.001)
(-—)2(-2)3(-4)410