Please answer the subtration problems below. Click SUBMIT when finished.
8	-	7	=			9	-	4	=
7	-	4	=			10	-	8	=
6	-	6	=			12	-	3	=
12	-	6	=			5	-	2	=
5	-	1	=			3	-	2	=
9	-	6	=			6	-	4	=
9	-	8	=			6	-	1	=
12	-	1	=			3	-	0	=
7	-	3	=			12	-	0	=
5	-	2	=			11	-	3	=