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(1)34×23÷34×23(2)79×(1÷78+87÷1)(3)45×(12-15)÷815(4)3450×47-47×950(5)34×5678+4418×34-34(6)(34+223)×8+723.
题目详情
(1)
×
÷
×
(2)
×(1÷
+
÷1)
(3)
×(
-
)÷
(4)
×
-
×
(5)
×56
+44
×
-
(6)(
+
)×8+
.
3 |
4 |
2 |
3 |
3 |
4 |
2 |
3 |
(2)
7 |
9 |
7 |
8 |
8 |
7 |
(3)
4 |
5 |
1 |
2 |
1 |
5 |
8 |
15 |
(4)
34 |
50 |
4 |
7 |
4 |
7 |
9 |
50 |
(5)
3 |
4 |
7 |
8 |
1 |
8 |
3 |
4 |
3 |
4 |
(6)(
3 |
4 |
2 |
23 |
7 |
23 |
▼优质解答
答案和解析
(1)
×
÷
×
,
=
×
×
×
,
=
;
(2)
×(1÷
+
÷1),
=
×(
+
),
=
×
,
=
;
(3)
×(
-
)÷
,
=
×
×
,
=
;
(4)
×
-
×
,
=(
3 |
4 |
2 |
3 |
3 |
4 |
2 |
3 |
=
3 |
4 |
2 |
3 |
4 |
3 |
2 |
3 |
=
4 |
9 |
(2)
7 |
9 |
7 |
8 |
8 |
7 |
=
7 |
9 |
8 |
7 |
8 |
7 |
=
7 |
9 |
16 |
7 |
=
16 |
9 |
(3)
4 |
5 |
1 |
2 |
1 |
5 |
8 |
15 |
=
4 |
5 |
3 |
10 |
15 |
8 |
=
9 |
20 |
(4)
34 |
50 |
4 |
7 |
4 |
7 |
9 |
50 |
=(
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