题目内容
| 218+324÷18×5 | (488+32×5)÷12 | 1200-20×18 |
| 4500÷(150-40×3) | 200-(76+40×3) |
(1)218+324÷18×5,
=218+18×5,
=218+90,
=308;
(2)(488+32×5)÷12,
=(488+160)÷12,
=648÷12,
=54;
(3)1200-20×18,
=1200-360,
=840;
(4)4500÷(150-40×3),
=4500÷(150-120),
=4500÷30,
=150;
(5)200-(76+40×3),
=200-(76+120),
=200-196,
=4.
=218+18×5,
=218+90,
=308;
(2)(488+32×5)÷12,
=(488+160)÷12,
=648÷12,
=54;
(3)1200-20×18,
=1200-360,
=840;
(4)4500÷(150-40×3),
=4500÷(150-120),
=4500÷30,
=150;
(5)200-(76+40×3),
=200-(76+120),
=200-196,
=4.
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