题目内容
怎样简便就怎样算.
×
×
×
+
×
×87+
(
+
)×3×5.
| 9 |
| 11 |
| 7 |
| 15 |
| 11 |
| 3 |
| 5 |
| 7 |
| 6 |
| 13 |
| 7 |
| 13 |
| 5 |
| 7 |
| 13 |
| 88 |
| 13 |
| 88 |
(
| 1 |
| 3 |
| 2 |
| 5 |
(1)
×
×
=
;
(2)
×
+
×
,
=(
+
)×
,
=1×
,
=
;
(3)
×87+
,
=
×(87+1),
=
×88,
=13;
(4)(
+
)×3×5,
=
×3×5+
×3×5,
=5+6,
=11.
| 9 |
| 11 |
| 7 |
| 15 |
| 11 |
| 3 |
| 7 |
| 5 |
(2)
| 5 |
| 7 |
| 6 |
| 13 |
| 7 |
| 13 |
| 5 |
| 7 |
=(
| 6 |
| 13 |
| 7 |
| 13 |
| 5 |
| 7 |
=1×
| 5 |
| 7 |
=
| 5 |
| 7 |
(3)
| 13 |
| 88 |
| 13 |
| 88 |
=
| 13 |
| 88 |
=
| 13 |
| 88 |
=13;
(4)(
| 1 |
| 3 |
| 2 |
| 5 |
=
| 1 |
| 3 |
| 2 |
| 5 |
=5+6,
=11.
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