(1)25x30=750
(2)125x88=125x8x11
=1000x11=11000
(3)3600÷25÷4
=3600/(25x4)=3600/100=36
(4)480÷16=30
25×30
=25×3×10
=75×10
=750
125×88
=125×8×11
=1000×11
=11000
3600÷25÷4
=3600÷(25×4)
=3600÷100
=36
480÷16
=480÷8÷2
=60÷2
=30
3600÷25÷4
=3600÷(25×4)
=3600÷100
=36
480÷16
=30
25×30=750
125×88
=125×8×11
=1000×11
=11000
3600÷25÷4
=3600÷(25×4)
=3600÷100
=36
480÷16
=480÷8÷2
=60÷2
=30