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pencilSubtraction 1-Digit

10-5=7-7=4-3=
8-0=5-3=8-7=
9-4=0-0=2-2=
3-0=2-1=5-2=
10-0=10-5=4-0=
6-5=9-5=8-0=
8-1=10-4=7-0=
9-2=2-0=6-4=
5-1=7-2=6-6=
7-2=9-0=3-2=