题目内容
计算.
262+38×12
(1+
)÷(1+
)
6563+437÷23×12.
262+38×12
(1+
| 1 |
| 5 |
| 1 |
| 5 |
6563+437÷23×12.
262+38×12
=262+456,
=718;
(1+
)÷(1+
)
=1
÷1
,
=1;
6563+437÷23×12
=6593+19×12,
=6593+228,
=6821.
=262+456,
=718;
(1+
| 1 |
| 5 |
| 1 |
| 5 |
=1
| 1 |
| 5 |
| 1 |
| 5 |
=1;
6563+437÷23×12
=6593+19×12,
=6593+228,
=6821.
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