number-bonds/addition-bonds/expert · 套题 2
8 problems
姓名:
班级:
日期:
1
1 + ___ 5
=
2
___ + 2 3
=
3
___ + 5 9
=
4
___ + 1 2
=
5
1 + ___ 4
=
6
4 + ___ 9
=
7
___ + 5 10
=
8
___ + 7 10
=