问题
解答题
|
答案
(1)
×8 25
×3 4 5 6
=
×6 25 5 6
=1 5
(2)
×2 15
+1 6
×5 6 2 15
=
×(2 15
+1 6
)5 6
=
×12 15
=2 15
(3)
×5×5 7 14 5
=
×(5×5 7
)14 5
=
×145 7
=10
|
(1)
×8 25
×3 4 5 6
=
×6 25 5 6
=1 5
(2)
×2 15
+1 6
×5 6 2 15
=
×(2 15
+1 6
)5 6
=
×12 15
=2 15
(3)
×5×5 7 14 5
=
×(5×5 7
)14 5
=
×145 7
=10