56x32 56x27 56x96-56x57+ 56怎么样巧算?

如题所述

56x32 56x27 56x96-56x57+ 56怎么样巧算?
56x32+ 56x27 +56x96-56x57+ 56
=56×(32+27+96-57+1)
=56×99
=56×100-56
=5600-56
=5544
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第1个回答  2016-07-31
56X32+56X27+56X96-56x57+56
=56X(32+27+96-57+1)
=56X99
=56X100-56X1
=5600-56
=5544