
这几道题怎么简便运算?
2个回答
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解答
①(476-23×4)÷6
=(476-92)÷6
=384÷6
=64
②846÷[6×(31-28)]
=846÷[6×3]
=846÷18
=47
③4800÷25÷4
=4800÷(25×4)
=4800÷100
=48
④56×99+56
=56×(99+1)
=56×100
=5600
①(476-23×4)÷6
=(476-92)÷6
=384÷6
=64
②846÷[6×(31-28)]
=846÷[6×3]
=846÷18
=47
③4800÷25÷4
=4800÷(25×4)
=4800÷100
=48
④56×99+56
=56×(99+1)
=56×100
=5600
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