问题描述:
脱式计算.75×12+280÷35
972÷(720-21×33)
125÷[(572+78)÷26].
最佳答案:
(1)75×12+280÷35
=900+8
=908
(2)972÷(720-21×33)
=972÷(720-693)
=972÷27
=36
(3)125÷[(572+78)÷26]
=125÷[650÷26]
=125÷25
=5
脱式计算.75×12+280÷35972÷(720-21×33)125÷[(572+78)÷26].
问题描述:
脱式计算.(1)75×12+280÷35
=900+8
=908
(2)972÷(720-21×33)
=972÷(720-693)
=972÷27
=36
(3)125÷[(572+78)÷26]
=125÷[650÷26]
=125÷25
=5