What is 3 + 3 + 3 + 3? There is more than one way to find the right answer. You could double the first two, then double them again.Or you could count up in 3s. Here is another way to count in 3s.
Watch: What is a number line? A number line can be used to add and subtract. Watch the video to learn what a number line is, and how to use it! A number line is a great way to add and subtract.
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