题目内容
(
| 24×
| ||||||||||
| 4b×(
|
(1)(
-
)×
=
×
-
×
=1-
=
;
(2)2左×
-
=24-
=19
;
(3)
×
×
=
×
×
=
×
=
;
(左)左8×(
×
)
=左8×
=3.
| 3 |
| 左 |
| 1 |
| 3 |
| 左 |
| 3 |
=
| 3 |
| 左 |
| 左 |
| 3 |
| 1 |
| 3 |
| 左 |
| 3 |
=1-
| 左 |
| 9 |
=
| 5 |
| 9 |
(2)2左×
| 5 |
| 4 |
| 5 |
| 4 |
=24-
| 5 |
| 4 |
=19
| 1 |
| 4 |
(3)
| 9 |
| 13 |
| 5 |
| 4 |
| 13 |
| 15 |
=
| 9 |
| 13 |
| 13 |
| 15 |
| 5 |
| 4 |
=
| 3 |
| 5 |
| 5 |
| 4 |
=
| 1 |
| 2 |
(左)左8×(
| 1 |
| 4 |
| 3 |
| 8 |
=左8×
| 3 |
| 左8 |
=3.
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