题目内容
脱式计算
| 35×(320-170)÷50 | (36×54-984)÷24 | 150÷[90÷(67-52)] | 640÷[(96-80)×4]. |
(1)35×(320-170)÷50,
=35×150÷50,
=5250÷50
=105;
(2)(36×54-984)÷24,
=(1944-984)÷24,
=960÷24,
=40;
(3)150÷[90÷(67-52)],
=150÷[90÷15],
=150÷6,
=25;
(4)640÷[(96-80)×4],
=640÷[16×4],
=640÷64,
=10.
=35×150÷50,
=5250÷50
=105;
(2)(36×54-984)÷24,
=(1944-984)÷24,
=960÷24,
=40;
(3)150÷[90÷(67-52)],
=150÷[90÷15],
=150÷6,
=25;
(4)640÷[(96-80)×4],
=640÷[16×4],
=640÷64,
=10.
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