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怎样简便就怎样算14+34×33×(215+112)-1424×(38+13+512)917÷7+17×8172627×28(512-37)-(47-712)
题目详情
怎样简便就怎样算
| 3×(
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24×(
|
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| (
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▼优质解答
答案和解析
(1)
+
×3,
=
+
,
=
;
(2)3×(
+
)-
,
=3×
+3×
-
,
=
+
-
,
=
+(
-
),
=
+0,
=
;
(3)24×(
+
+
),
=24×
+24×
+24×
,
=9+8+10,
=27;
(4)
÷7+
×
,
=
×
+
1 |
4 |
3 |
4 |
=
1 |
4 |
9 |
4 |
=
5 |
2 |
(2)3×(
2 |
15 |
1 |
12 |
1 |
4 |
=3×
2 |
15 |
1 |
12 |
1 |
4 |
=
2 |
5 |
1 |
4 |
1 |
4 |
=
2 |
5 |
1 |
4 |
1 |
4 |
=
2 |
5 |
=
2 |
5 |
(3)24×(
3 |
8 |
1 |
3 |
5 |
12 |
=24×
3 |
8 |
1 |
3 |
5 |
12 |
=9+8+10,
=27;
(4)
9 |
17 |
1 |
7 |
8 |
17 |
=
9 |
17 |
1 |
7 |
作业帮用户
2017-10-13
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