题目内容
| 脱式计算. 30÷15+30×15 | (564-18×24)÷12 |
| 576÷(33+15) | 909-[36×(350÷14)]. |
30÷15+30×15
=2+450,
=452;
(564-18×24)÷12
=(564-432)÷12,
=132÷12,
=11;
576÷(33+15)
=576÷48,
=12;
909-[36×(350÷14)].
=909-[36×25],
=909-900,
=9.
=2+450,
=452;
(564-18×24)÷12
=(564-432)÷12,
=132÷12,
=11;
576÷(33+15)
=576÷48,
=12;
909-[36×(350÷14)].
=909-[36×25],
=909-900,
=9.
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