问题
解答题
|
答案
(1)
×7 13
+3 4
×3 4 6 13
=
×(3 4
+7 13
)6 13
=
×13 4
=
;3 4
(2)
÷3 7
+7 11
÷4 7 7 11
=(
+3 7
)×4 7 11 7
=1×11 7
=1
;4 7
(3)
÷(12 7
-2 3
)1 4
=
÷12 7 5 12
=4
;4 35
(4)
+5 9
÷5 9 5 3
=
+5 9 1 3
=
;8 9
(5)
×16 5
÷1 2 2 5
=
÷8 5 2 5
=4;
(6)6×(
+7 9
)÷5 6 29 5
=(6×
+6×7 9
)÷5 6 29 5
=(
+5)÷14 3 29 5
=
÷29 3 29 5
=1
.2 3