The phrase "fact families" refers to a group of related math facts that involve the same numbers. For example, in the fact family 2, 3, and 5, you can find related math facts such as 2+3=5, 3+2=5, 5-3=2, and 5-2=3.
Sentences with «fact families»
In fact our family had to pay $ 35 Euros to park at a public parking garage. (kayak.co.uk)
Build operations skills and knowledge of fact families with these self - checking cards! (hand2mind.com)
Do not move to a different fact family without first mastering the previous one. (thoughtco.com)