Adding till 400

Calculate:

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

187	+	87	=
125	+	118	=
169	+	136	=
71	+	84	=
110	+	75	=
195	+	108	=
201	+	185	=
163	+	125	=
135	+	77	=
109	+	53	=