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> 计算(1)23-712+427(2)(48+20)+(12-5)(3)48-913+312.-数学
计算(1)23-712+427(2)(48+20)+(12-5)(3)48-913+312.-数学
题目简介
计算(1)23-712+427(2)(48+20)+(12-5)(3)48-913+312.-数学
题目详情
计算
(1)2
3
-7
12
+4
27
(2)(
48
+
20
)+(
12
-
5
)
(3)
48
-9
1
3
+3
12
.
题型:解答题
难度:中档
来源:不详
答案
(1)2
3
-7
12
+4
27
=2
3
-14
3
+12
3
=0;
(2)(
48
+
20
)+(
12
-
5
)
=4
3
+2
5
+2
3
-
5
=6
3
+
5
;
(3)
48
-9
class="stub"1
3
+3
12
=4
3
-3
3
+6
3
=7
3
.
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题目简介
计算(1)23-712+427(2)(48+20)+(12-5)(3)48-913+312.-数学
题目详情
(1)2
(2)(
(3)
答案
=2
=0;
(2)(
=4
=6
(3)
=4
=7