fact-family/add-sub-within-20/easy · 세트 49
6 problems
이름:
학급:
날짜:
1
Write the fact family for 15, 5, 20:
=
2
Write the fact family for 7, 9, 16:
=
3
Write the fact family for 3, 16, 19:
=
4
Write the fact family for 15, 4, 19:
=
5
Write the fact family for 8, 2, 10:
=
6
Write the fact family for 4, 14, 18:
=