Multiplication till 400

Calculate:

The number of examples:
Numerical difficulty:
Range of values:
Multiplicity:

12	×	8	=
12	×	15	=
8	×	9	=
7	×	9	=
13	×	12	=
6	×	5	=
17	×	19	=
4	×	13	=
8	×	4	=
15	×	22	=