问题
解答题
计算下列各题.
|
答案
(1)
×2 5
×4 7 21 10
=
×(2 5
×4 7
)21 10
=
×2 5 6 5
=
;12 25
(2)
×3 4
×8 15 10 13
=
×2 5 10 13
=
;4 13
(3)
×4×16 9 3 4
=
×(4×16 9
)3 4
=
×316 9
=5
.1 3
计算下列各题.
|
(1)
×2 5
×4 7 21 10
=
×(2 5
×4 7
)21 10
=
×2 5 6 5
=
;12 25
(2)
×3 4
×8 15 10 13
=
×2 5 10 13
=
;4 13
(3)
×4×16 9 3 4
=
×(4×16 9
)3 4
=
×316 9
=5
.1 3