Use doubles and near doubles

~9 min

A near double is one more or one less than a double you know.

Know a double

Know a double
  • A double is adding the same number to itself, like 6 + 6. Doubles help you add fast in your head.

A double is adding the same number to itself, like 6 + 6. Doubles help you add fast in your head.

💡 Say it as “two sixes” to remember it.