问题
解答题
列式计算. (1)
(2)
(3)
|
答案
(1)(
+1÷1 2
)×1 2
,1 2
=(
+2)×1 2
,1 2
=2
×1 2
,1 2
=
.5 4
答:是
.5 4
(2)
×60+2 3
×14 9
,9 7
=40+2,
=42.
答:和是42.
(3)1÷(
×3 4
),16 3
=1÷4,
=
.1 4
答:是
.1 4
列式计算. (1)
(2)
(3)
|
(1)(
+1÷1 2
)×1 2
,1 2
=(
+2)×1 2
,1 2
=2
×1 2
,1 2
=
.5 4
答:是
.5 4
(2)
×60+2 3
×14 9
,9 7
=40+2,
=42.
答:和是42.
(3)1÷(
×3 4
),16 3
=1÷4,
=
.1 4
答:是
.1 4