Fact strategy review

~10 min

Use doubles, make-ten, or known facts to solve quickly.

Use doubles facts

Use doubles facts
  • A doubles fact is adding the same number to itself, like 6 + 6. You can know it fast because it is “double” that number.

A doubles fact is adding the same number to itself, like 6 + 6. You can know it fast because it is “double” that number.

💡 If the addends match, it is a doubles fact.