fact-family/add-sub-within-20/easy · Série 88
6 problems
Nom:
Classe:
Date:
1
Write the fact family for 19, 1, 20:
=
2
Write the fact family for 2, 9, 11:
=
3
Write the fact family for 3, 15, 18:
=
4
Write the fact family for 16, 2, 18:
=
5
Write the fact family for 15, 1, 16:
=
6
Write the fact family for 12, 6, 18:
=