(1234+2341+3412+4123)÷5=______.
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①(1234+2341+3412+4123)÷5
=[(1234+2341)+(3412+4123)]÷5,
=(3575+7535)× 1 5 ,
=3575× 1 5 +7535× 1 5 ,
=715+1507,
=2222.
②(1234+2341+3412+4123)÷5,
[(1+2+3+4)×1000+(1+2+3+4)×100+(1+2+3+4)×10+(1+2+3+4)]÷5
=1000×10÷5+100×10÷5+10×10÷5+10÷5,
=2222.
故答案为:2222.
=[(1234+2341)+(3412+4123)]÷5,
=(3575+7535)× 1 5 ,
=3575× 1 5 +7535× 1 5 ,
=715+1507,
=2222.
②(1234+2341+3412+4123)÷5,
[(1+2+3+4)×1000+(1+2+3+4)×100+(1+2+3+4)×10+(1+2+3+4)]÷5
=1000×10÷5+100×10÷5+10×10÷5+10÷5,
=2222.
故答案为:2222.
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