Multiply.

$\underline{\begin{array}{ccc}& 1& 2\\ \times & & 6\\ & & \end{array}}$

Multiply:

$\underline{\begin{array}{ccc}\mathrm{H}& \mathrm{T}& \mathrm{O}\\ 9& 0& 0\\ \times & & 9\\ & & \end{array}}$

Multiply:

$\underline{\begin{array}{cccc}& \mathrm{H}& \mathrm{T}& \mathrm{O}\\ & 4& 0& 0\\ \times & & & 5\\ & & & \end{array}}$

Solve the following: $332\times 3$ .