Look at Part 1. Which color rectangles show addition sentences that are true?
The blue and green rectangles.
Why isn't the number sentence in the red rectangle true?
How could you change the number sentence in the orange rectangle to make it true?
Possible response: You could change the addends or the sum:
Look at Part 2. Count by 2s. How many flowers are there?
Why does counting by 2s help?
It is faster than counting each one.
What addition sentence can you write to show the sum of the pairs?
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