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现在参加这个测试
multiplying and dividing with the same power
a
5
2 x
6
2 =
2
4
3 x
12
3
= 48
4
2 x
2
3 =
2
3
n
x 4
6
= 12
6
n =
n
2 x
5
2 =
40
2
n =
24
5
6
5
=
5
8
n
8
n=
=
1
2
8
-2
4
-2
=
2
0
2
-1
2
1
2
-3
2
2
1/8
2
5
or exponent
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