Video: Using Bar Models to Find the Missing Number in an Addition Sentence

Find the missing number. 3 + _ = 10.


Video Transcript

Find the missing number. Three plus the missing number equals 10.

There are three blue bricks. We need to count the number of orange bricks. There’s one, two, three, four, five, six, seven. Three plus seven equals 10. The missing number is seven.

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