题目内容
在横线上填数,在○里填运算符号.
×
×
=______○______○______
(
+
)×12=______○______○______○______
11×
+
=(______○______)○______.
5 |
6 |
7 |
8 |
6 |
5 |
(
5 |
8 |
3 |
4 |
11×
7 |
12 |
7 |
12 |
(1)
×
×
=
×
×
;
(2)(
+
)×12=
×12+
×12;
(3)11×
+
=(11+1)×
.
故答案为:
,×,
,×,
;
,×,12,+,
,×,12;11,+,1,×,
.
5 |
6 |
7 |
8 |
6 |
5 |
5 |
6 |
6 |
5 |
7 |
8 |
(2)(
5 |
8 |
3 |
4 |
5 |
8 |
3 |
4 |
(3)11×
7 |
12 |
7 |
12 |
7 |
12 |
故答案为:
5 |
6 |
6 |
5 |
7 |
8 |
5 |
8 |
3 |
4 |
7 |
12 |
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