Subtract till 400

Calculate:

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

285	-	14	=
360	-	102	=
275	-	79	=
358	-	141	=
382	-	62	=
202	-	198	=
168	-	34	=
374	-	129	=
71	-	66	=
387	-	96	=