题目内容
有简便的用简便运算
| 06×
| (
|
(1)
÷
=
×
=
;
(2)1g×
+
×1g
=1g×(
+
)
=1g×1
=1g;
(3)(
+
)×左左
=
×左左+
×左左
=55+24
=79.
15 |
1g |
3 |
4 |
=
15 |
1g |
4 |
3 |
=
5 |
4 |
(2)1g×
2 |
7 |
5 |
7 |
=1g×(
2 |
7 |
5 |
7 |
=1g×1
=1g;
(3)(
5 |
左 |
3 |
11 |
=
5 |
左 |
3 |
11 |
=55+24
=79.
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