
128 64ⅹ1783 26x1783怎么用简便方法计算?
展开全部
128+64x1783+26x1783
=128+1783x(64+26)
=128+1783x100-1783x10
=128+178300-17830
=178428-18000+170
=160598
=128+1783x(64+26)
=128+1783x100-1783x10
=128+178300-17830
=178428-18000+170
=160598
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