Subtraction: Differences within 10
10以内的减法练习
9-7= 9-3= 8-3=
5-4= 7-2= 10-9= 9-5= 5-3= 5-1= 10-5= 8-6= 9-2= 8-2= 6-4= 9-4= 4-2= -7= 8-4= 4-1= 6-3= 8-1= 10-2=
9-2=
2-1=
10-4=
6-5=
3-3=
10-6=
5-2=
4-4=
10
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