fact-family/add-sub-within-20-fill-blanks · 套题 34
5 problems
姓名:
班级:
日期:
1
Write the fact family for 6, 1, 7:
=
2
Write the fact family for 1, 18, 19:
=
3
Write the fact family for 9, 3, 12:
=
4
Write the fact family for 17, 1, 18:
=
5
Write the fact family for 1, 8, 9:
=