K-5 friendly lesson
One small step at a time.Read the idea, try the activity, and celebrate each win as you go.
Add near doubles
Near doubles are almost doubles. Use a known double, then add or subtract 1.
Do this: Read the concept below, then try the quiz or activity.
Lesson 9 of 186
Concept
Near doubles look like: - 6 + 7 - 8 + 9 - 5 + 4
Strategy: 1. Find the closest double you know. 2. Adjust by 1.
Example: 6 + 7 - Double 6 is 12. - One more is 13. So, 6 + 7 = 13.
Example: 9 + 8 - Double 8 is 16. - One more is 17.
Try it
Use near doubles: 1. 4 + 5 2. 7 + 8 3. 9 + 10 4. 6 + 5 5. 3 + 4