Video: Representing Addition as Putting Together

Find the missing number. 3 yellow cars and 1 blue car is _ cars?

00:33

Video Transcript

Find the missing number. Three yellow cars and one blue car is how many cars?

There’re three yellow cars in the first picture. And we need to add one blue car. So we can start at number three on our number line and count forward one more.

Three yellow cars and one blue car is four cars.

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