Adding till 100

Calculate:

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

8	+	6	=
36	+	23	=
8	+	14	=
39	+	21	=
42	+	51	=
2	+	6	=
13	+	8	=
40	+	31	=
27	+	25	=
5	+	8	=