fact-family/add-sub-within-20/expert · セット 27
5 problems
名前：
クラス:
日付：
1
Write the fact family for 18, 1, 19:
=
2
Write the fact family for 9, 3, 27:
=
3
Write the fact family for 13, 6, 19:
=
4
Write the fact family for 17, 3, 20:
=
5
Write the fact family for 12, 1, 13:
=