fact-family/add-sub-within-20/easy · Sæt 26
5 problems
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1
Write the fact family for 15, 5, 20:
=
2
Write the fact family for 6, 6, 12:
=
3
Write the fact family for 10, 10, 20:
=
4
Write the fact family for 16, 2, 18:
=
5
Write the fact family for 15, 3, 18:
=