Subtract till 400

Calculate:

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

362	-	48	=
387	-	24	=
329	-	138	=
341	-	182	=
379	-	28	=
235	-	133	=
153	-	21	=
220	-	43	=
286	-	113	=
86	-	56	=