Adding till 400

Calculate:

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

125	+	39	=
175	+	169	=
36	+	39	=
81	+	171	=
112	+	83	=
46	+	26	=
3	+	8	=
119	+	186	=
117	+	124	=
101	+	79	=