Question

Which doubles fact helps you solve 5+6=11? Circle the number sentence.

Answer 1

5 + 5 = 10

Explanation:

If you know that 5 + 5 = 10, you can solve 5 + 6 = 11. You are adding one more to the addends (adding 6 instead of adding 5), so you add one more to the sum (11 instead of 10).