# Lesson 10 Find the Tens or the Doubles (Worksheet)

**Part 1:** Add. Find and cross off the Tens first, then use the Ten and Another strategy.

**Part 2:** Add. Find and cross off the Doubles first, then add the third number (1, 2, or 3).

**Part 3:** Add. Find the Tens OR the Doubles. Try to finish this section in less than three minutes.