题目内容

(1)(2
1
4
)2×42
(2)[(
1
2
)2]3×(23)3
(3)(-0.125)12×(-1
2
3
)7×(-8)13×(-
3
5
)9
(4)-82003×(0.125)2002+(0.25)17×417.
(1)(2
1
4
)2×42,
=(
9
4
)2×42,
=81;

(2)[(
1
2
)2]3×(23)3,
=(
1
2
)6×29,
=(
1
2
×2)6×23,
=23,
=8;

(3)(-0.125)12×(-1
2
3
)7×(-8)13×(-
3
5
)9,
=(-
1
8
)12×(-
5
3
)7×(-8)13×(-
3
5
)9,
=-(
1
8
)12×813×(
5
3
)7×(
3
5
)9,
=-(
1
8
×8)12×8×(
5
3
×
3
5
)7×(
3
5
)2,
=-8×
9
25
,
=-
72
25
;

(4)-82003×(0.125)2002+(0.25)17×417,
=-8×82002×(
1
8
)2002+(
1
4
)17×417,
=-(8×
1
8
)2002×8+(
1
4
×4)17,
=-8+1,
=-7;
练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网