fact-family/add-sub-within-20-write-all · 套题 80
6 problems
姓名:
班级:
日期:
1
Write the fact family for 2, 1, 3:
=
2
Write the fact family for 7, 12, 19:
=
3
Write the fact family for 3, 13, 16:
=
4
Write the fact family for 2, 18, 20:
=
5
Write the fact family for 6, 1, 7:
=
6
Write the fact family for 2, 9, 11:
=