Adding till 400

Calculate:

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

93	+	120	=
87	+	86	=
173	+	117	=
107	+	74	=
19	+	15	=
113	+	69	=
57	+	119	=
151	+	119	=
90	+	111	=
124	+	185	=