问题
解答题
|
答案
(1)
×(5 8
+16)4 5
=
×5 8
+4 5
×165 8
=
+101 2
=10
;1 2
(2)(
+5 6
)÷3 4 8 3
=
×19 12 3 8
=
;19 32
(3)
÷[7 11
-(1-2 5
)]7 10
=
÷[7 11
-2 5
]3 10
=
÷7 11 1 10
=
;70 11
(4)
+6 7
÷2 7
+2 7 6 7
=
+1+6 7 6 7
=
+6 7
+16 7
=1
+15 7
=2
;5 7
(5)
-7 6
×7 6 1 4
=
×(1-7 6
)1 4
=
×7 6 3 4
=
;7 8
(6)
+6 5
×6 5
÷5 6 1 5
=
+1÷6 5 1 5
=
+56 5
=6
;1 5
(7)
÷11+5 11
×1 11 6 11
=
×5 11
+1 11
×1 11 6 11
=(
+5 11
)×6 11 1 11
=1×1 11
=
;1 11
(8)4÷
-3 4
÷43 4
=
-16 3 3 16
=
.247 48