题目内容
用递等式计算
| 800÷4×3 | 225÷5÷3 | 638-320÷8. |
(1)800÷4×3,
=200×3,
=600;
(2)225÷5÷3,
=45÷3,
=15;
(3)638-320÷8,
=638-40,
=598.
=200×3,
=600;
(2)225÷5÷3,
=45÷3,
=15;
(3)638-320÷8,
=638-40,
=598.
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