Adding till 400

Calculate:

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

106	+	127	=
4	+	5	=
116	+	132	=
48	+	45	=
99	+	101	=
142	+	117	=
151	+	115	=
182	+	137	=
10	+	11	=
74	+	156	=