Subtract till 400

Calculate:

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

370	-	88	=
326	-	36	=
191	-	133	=
372	-	138	=
345	-	160	=
196	-	17	=
309	-	41	=
210	-	197	=
315	-	59	=
46	-	33	=