题目内容
能简便的要简便计算.
÷
+
÷
÷[
×(
+
)]
(
+
)×13+25÷51.
| 5 |
| 17 |
| 2 |
| 3 |
| 1 |
| 3 |
| 3 |
| 3 |
| 8 |
| 15 |
| 5 |
| 32 |
| 9 |
| 10 |
| 1 |
| 6 |
(
| 2 |
| 39 |
| 2 |
| 51 |
(1)
÷
+
÷
,
=
+
,
=
;
(2)
÷[
×(
+
)],
=
÷[
×
],
=
÷
,
=
;
(3)(
+
)×13+25÷51,
=
×13+
×13+
,
=
+
+
,
=
+(
+
),
=
+1,
=1
.
| 5 |
| 17 |
| 2 |
| 3 |
| 1 |
| 3 |
| 3 |
| 3 |
=
| 15 |
| 34 |
| 1 |
| 3 |
=
| 79 |
| 102 |
(2)
| 8 |
| 15 |
| 5 |
| 32 |
| 9 |
| 10 |
| 1 |
| 6 |
=
| 8 |
| 15 |
| 5 |
| 32 |
| 32 |
| 30 |
=
| 8 |
| 15 |
| 1 |
| 6 |
=
| 16 |
| 5 |
(3)(
| 2 |
| 39 |
| 2 |
| 51 |
=
| 2 |
| 39 |
| 2 |
| 51 |
| 25 |
| 51 |
=
| 2 |
| 3 |
| 26 |
| 51 |
| 25 |
| 51 |
=
| 2 |
| 3 |
| 26 |
| 51 |
| 25 |
| 51 |
=
| 2 |
| 3 |
=1
| 2 |
| 3 |
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