Simplify the expression $10\times6u$10×6u.
Simplify the expression $6n\times10$6n×10.
Simplify the expression $9\times m\times n\times8$9×m×n×8.
Simplify the expression $w\times4\times z\times6$w×4×z×6.
Use letters to express generalised numbers and express basic arithmetic processes algebraically.