Curated OER
Subtraction Fact Families
In this subtraction fact families learning exercise, students fill in the blanks in 28 problems with numbers that are subtracted to make the differences shown.
Curated OER
Subtraction Fact Families
In this subtraction fact family instructional activity, students show fact families with a set of 3 numbers given in a box, 13 sets total. A reference web site is given for additional activities.