题目内容
用递等式计算
| 360÷(12+6)×5 | 200÷[(172-72)÷25]. |
(1)360÷(12+6)×5,
=360÷18×5,
=20×5,
=100;
(2)200÷[(172-72)÷25],
=200÷[100÷25],
=200÷4,
=50.
=360÷18×5,
=20×5,
=100;
(2)200÷[(172-72)÷25],
=200÷[100÷25],
=200÷4,
=50.
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