96×101-96
96×(101-1)
=96×100
=9600
99×27+27
=(99+1)×27
=100×27
=2700
)(20+4)×25
=20×25+4×25
=500+100
=600
125×(80×8)
=125×8×80
=1000×80
=80000
96×101-96
96×(101-1)
=96×100
=9600
99×27+27
=(99+1)×27
=100×27
=2700
)(20+4)×25
=20×25+4×25
=500+100
=600
125×(80×8)
=125×8×80
=1000×80
=80000