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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