Multiplication till 400

Calculate:

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

16	×	12	=
29	×	12	=
21	×	19	=
17	×	16	=
6	×	3	=
8	×	9	=
12	×	21	=
14	×	19	=
8	×	10	=
17	×	10	=