(1)125×26×8,
=(125×8)×26,
=1000×26,
=26000;
(2)105×34-5×34,
=(105-5)×34,
=100×34,
=3400;
(3)150÷25,
=150÷(5×5),
=150÷5÷5,
=30÷5,
=6.
(1)125×26×8,
=(125×8)×26,
=1000×26,
=26000;
(2)105×34-5×34,
=(105-5)×34,
=100×34,
=3400;
(3)150÷25,
=150÷(5×5),
=150÷5÷5,
=30÷5,
=6.