人教版七年级数学上册有理数的乘方综合复习题9文档格式.docx
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人教版七年级数学上册有理数的乘方综合复习题9文档格式.docx
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552193
(-1)3-(-3)×
(-2)2×
(-5)
2、用科学记数法表示下列各数。
2000-900000004400000-2500000
-1200024000000700000-9310000
3、下列用科学记数法写出的数,原来分别是什么数?
3×
1045×
1042.5×
106-5.24×
107
-2×
104-3.77×
107-6×
107-6.15×
104
4、对下列各数取近似数。
0.000998(精确到万分位)0.304778(精确到十位)
6.17123(精确到0.1)0.0851(精确到0.01)
(-1)2(-2)2(-5)4(-19)2
(-—)3-(-3)2(-9)2×
(-10)2
6
(-3)2-8+(-8)-13(-2)2-(-5)-(-4)2×
(-5)
(-4)3+(-7)×
[(-1)2-1]+(-1)3÷
(-4)
(-—)2-4×
(-2)3(-0.1)4+[(-8)2+(6+12)÷
6]
171194
—×
(—-—)×
636173
(-4)2+(-4)×
-70000070008100-870000
-7000-16000007300000-6510000000
5×
1083×
108-3.9×
105-3.92×
-7.2×
105-1.43×
1047×
1058.51×
0.000761(精确到万分位)5.77853(精确到十分位)
0.905968(精确到0.01)0.0743(精确到0.01)
(-10)2(-4)4(-5)2(-90)2
9
(-—)3-(-6)2(-7)2×
(-6)2
8
6×
(-3)2-7×
(-6)+18(-3)3+(-7)-(-2)3×
(-2)
(-4)2+(-9)+[(-2)2+6]+(-1)2×
(-—)3×
5×
(-1)2(-1)2-[(-5)2-(8-12)÷
4]
171133
852174
(-2)3-(-8)÷
(-3)
100000-500000840000-363000
18000000-80000063000000-9100
-9×
1052×
105-7.8×
103-2.81×
108
-3×
1066.6×
103-2.5×
1084.97×
105
0.0000519(精确到万分位)3536.51(精确到个位)
53.0832(精确到0.001)0.00736(精确到0.1)
(-7)3(-3)3(-4)4(-4)2
(-—)3-(-4)3(-8)2×
(-1)2
5+(-6)+11(-4)3+(-9)+(-2)2÷
(-3)2+(-6)×
[(-3)2+4]-(-4)2÷
(-—)2×
(-1)2(-1)4+[(-2)2+(4+12)÷
111181
923112
(-2)2+(-4)-(-2)3×
(-2)
400300009400000-79700
-1100000400009100000-9950000
-8×
1076×
104-9.9×
108-8.39×
106
-9.9×
105-9.36×
104-7.7×
1027.96×
0.0000523(精确到万分位)48286.4(精确到十分位)
76.2503(精确到0.1)0.00951(精确到0.1)
(-1)3(-4)3(-1)4(-0.8)2
(-—)2-(-1)3(-8)2×
(-4)3-4-(-6)-12(-1)2+(-5)-(-1)2×
(-2)2-(-4)+[(-4)2-8]-(-3)2×
4
(-—)4÷
4×
(-4)2(-10)5+[(-6)2-(9-42)÷
244114
(-4)3+(-6)+(-3)3×
15000000-90005000000-779000000
-120000330000090000-446000
-5×
105-2×
1052.4×
107-8.78×
3.6×
1047.64×
1083.4×
1032.41×
0.0000925(精确到万分位)6894.89(精确到个位)
4.84048(精确到0.001)0.00564(精确到0.01)
(-10)3(-3)3(-4)2(-5)2
(-—)2-(-6)3(-3)2×
(-9)2
(-4)3-7×
(-5)-9(-3)3-(-4)×
(-3)3÷
(-1)3-(-3)-[(-1)2+9]+(-4)3÷
(-—)4+5×
(-2)2(-0.01)4-[(-6)2-(4+22)×
111115
545114
(-2)3+(-4)-(-1)3÷
50000-500000007200000-7650000
-12000-3500053000-227000
2×
103-7×
1036.3×
1028.08×
-4.7×
1079.05×
1086.1×
1058.22×
0.000543(精确到万分位)8553.28(精确到十位)
18.5484(精确到0.1)0.00599(精确到0.1)
(-3)3(-6)4(-2)3(-20)2
(-—)2-(-7)3(-8)2×
(-4)2
(-4)3×
(-2)-9(-3)2-(-3)+(-2)3×
(-4)3-(-5)×
[(-1)2-9]-(-4)2÷
(-—)2+5×
(-1)3(-0.1)5-[(-8)2-(3+12)÷
191113
362194
(-3)2-(-2)×
(-4)3÷
7000-600900000-9850000000
-400-1100028000000-782000
4×
107-2×
107-5.6×
106-7.04×
3.3×
1037.65×
104-3.5×
1053.32×
103
0.0000834(精确到万分位)4.03433(精确到十分位)
2.96537(精确到0.01)0.0833(精确到0.1)
(-6)2(-3)3(-1)3(-0.13)2
(-—)2-(-6)3(-8)2×
(-3)2
5
(-9)-11(-4)3-(-7)÷
(-2)3÷
(-4)3-(-5)+[(-2)3-2]+(-2)2×
(-2)2(-1)3+[(-7)2+(4-62)×
191123
332192
(-1)2+(-9)+(-3)2÷
110010003600-20200
2000-2000000037000-983000
1035×
1029×
108-2.44×
-5.7×
1048.12×
1046.3×
104-8.62×
0.0000641(精确到万分位)1.12258(精确到个位)
8.18213(精确到0.01)0.00879(精确到0.001)
(-4)2(-3)2(-3)4(-20)2
(-—)3-(-3)3(-1)2×
(-4)3-5+(-9)-9(-2)2+(-9)÷
(-1)2-(-9)-[(-3)2-6]-(-1)2×
(-—)2-2×
(-1)3(-1)2-[(-3)2+(9-22)÷
2]
191125
565194
(-4)3+(-9)×
(-2)3×
14000009000000890000-54200
1700-1008400-119000000
-6×
106-8×
108-7.7×
1021.97×
-2.5×
1075.51×
102-9.1×
103-2.95×
0.0000751(精确到万分位)27633.2(精确到十位)
44.1369(精确到0.01)0.00627(精确到0.01)
(-5)2(-4)4(-6)2(-110)2
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