如题所述
第1个回答 2020-09-13
①73×103-3×73,
=(103-3)×73,
=100×73,
=7300;
②125×(8×16),
=(125×8)×16,
=1000×16,
=16000;
③75×99+75,
=75×(99+1),
=75×100,
=7500.
=(103-3)×73,
=100×73,
=7300;
②125×(8×16),
=(125×8)×16,
=1000×16,
=16000;
③75×99+75,
=75×(99+1),
=75×100,
=7500.