题目内容
|
(1)
×63×
=
=30;
(2)
×32×
=
=9;
(3)
×
+
×
=
×(
+
)
=
×1
=
;
(4)
+5
+99
=
×3+99+5
=1+99+5
=105;
(5)
×15=
;
(6)
×19-
×4
=(19-4)×
=15×
=4.
| 6 |
| 7 |
| 5 |
| 9 |
=
=30;
(2)
| 3 |
| 4 |
| 3 |
| 8 |
=
=9;
(3)
| 9 |
| 14 |
| 5 |
| 9 |
| 9 |
| 14 |
| 4 |
| 9 |
=
| 9 |
| 14 |
| 5 |
| 9 |
| 4 |
| 9 |
=
| 9 |
| 14 |
=
| 9 |
| 14 |
(4)
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
=
| 1 |
| 3 |
=1+99+5
=105;
(5)
| 4 |
| 13 |
| 60 |
| 13 |
(6)
| 4 |
| 15 |
| 4 |
| 15 |
=(19-4)×
| 4 |
| 15 |
=15×
| 4 |
| 15 |
=4.
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