i: =20*(-29)+(-20)*111
=20(-29-111)
=-20*140=-2800
k: \(=-152\cdot125+152\cdot333-125\cdot333+125\cdot152\)
=27*333
=8991
m: \(=63\left(83+17\right)=6300\)
n: \(=126-7\cdot\left(-16\right)=126+112=238\)
p: \(=35\left(71\cdot2-7-13\right)=35\cdot122=4270\)
q: \(=18\cdot23-18\cdot17-13\cdot23-13\cdot18=5\cdot23-18\cdot30=115-540=-425\)