(完整)初中数学应熟记数值表(平方、立方、2的n次方、常用分数值)
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常用自然数的平方值(2次方)
n的2次方
12
22
32
42
52
62
72
82
92
102
结果
1
4
9
16
25
36
49
64
81
100
n的2次方
112
122
132Baidu Nhomakorabea
142
152
162
172
182
192
202
结果
121
144
169
196
225
256
289
324
361
400
常用自然数的立方值(3次方)
n的3次方
13
23
33
43
53
63
73
83
93
103
结果
1
8
27
64
125
216
343
512
729
1000
2的n次方值
2的n次方
21
22
23
24
25
26
27
28
29
210
结果
2
4
8
16
32
64
128
256
512
1024
=0.5
=0.
=0.
=0.25
= =0.5
=0.75
=0.2
=0.4
=0.6
=0.7
=0.1
= =0.
= =0.5
= =0.
=0.8
=0. 4285
=0. 8571
=0. 2857
=0. 7142
=0. 1428
=0. 5714
=0.125
= =0.25
=0.375
= =0.5
=0.625
= =0.75
=0.875
=0.
=0.
n的2次方
12
22
32
42
52
62
72
82
92
102
结果
1
4
9
16
25
36
49
64
81
100
n的2次方
112
122
132Baidu Nhomakorabea
142
152
162
172
182
192
202
结果
121
144
169
196
225
256
289
324
361
400
常用自然数的立方值(3次方)
n的3次方
13
23
33
43
53
63
73
83
93
103
结果
1
8
27
64
125
216
343
512
729
1000
2的n次方值
2的n次方
21
22
23
24
25
26
27
28
29
210
结果
2
4
8
16
32
64
128
256
512
1024
=0.5
=0.
=0.
=0.25
= =0.5
=0.75
=0.2
=0.4
=0.6
=0.7
=0.1
= =0.
= =0.5
= =0.
=0.8
=0. 4285
=0. 8571
=0. 2857
=0. 7142
=0. 1428
=0. 5714
=0.125
= =0.25
=0.375
= =0.5
=0.625
= =0.75
=0.875
=0.
=0.