问题 解答题
8
=______,
(-2)2
=______,
2
3
=______.
16b4
=______,(-3
5
)2
=______,
2
7
9
=______.
60
=______,
40
5
=______,
2a
×
6a
=______,
18
×
24
=______.
答案

8
=2
2
(-2)2
=2,
2
3
=
2
×
3
3
×
3
=
6
3

16b4
=4b2(-3
5
)2
=45;

2
7
9
=
25
9
=
5
3
60
=2
15

40
5
=
8
=2
2
2a
×
6a
=
12a2
=2
3
a;

18
×
24
=3
2
×2
6
=6
12
=12
3

故答案为:2

2
、2、
6
3
、4b2、45、
5
3
、2
15
、2
2
、2
3
、12
3

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