Square power excercises till 400

Calculate:

Number of examples:
Numerical difficulty:
Range of values:
Multiplicity:

22	+	42	=
52	+	92	=
52	+	32	=
32	+	12	=
22	+	12	=
112	+	62	=
102	+	62	=
92	+	82	=
52	+	42	=
22	+	22	=