题目内容
6 |
11 |
3 |
11 |
91×
1 |
13 |
67×
65 |
66 |
1 |
66 |
3 |
4 |
3 |
28 |
3 |
70 |
3 |
130 |
3 |
208 |
(1)
×17-12×
=
×17-6×
=
×(17-6)
=
×11
=6;
(2)91×
+9÷13-1÷13×100
=94×
+9×
-
×100
=(94+9-100)×
=3×
=
;
(3)67×
+
=(66+1)×
+
=66×
+(
+
)
=65+1
=66;
(4)
+
+
+
+
=1-
+
-
+
-
+
-
+
-
=1-
=
.
6 |
11 |
3 |
11 |
=
6 |
11 |
6 |
11 |
=
6 |
11 |
=
6 |
11 |
=6;
(2)91×
1 |
13 |
=94×
1 |
13 |
1 |
13 |
1 |
13 |
=(94+9-100)×
1 |
13 |
=3×
1 |
13 |
=
3 |
13 |
(3)67×
65 |
66 |
1 |
66 |
=(66+1)×
65 |
66 |
1 |
66 |
=66×
65 |
66 |
65 |
66 |
1 |
66 |
=65+1
=66;
(4)
3 |
4 |
3 |
28 |
3 |
70 |
3 |
130 |
3 |
208 |
=1-
1 |
4 |
1 |
4 |
1 |
7 |
1 |
7 |
1 |
10 |
1 |
10 |
1 |
13 |
1 |
13 |
1 |
16 |
=1-
1 |
16 |
=
15 |
16 |
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