We have been working on counting on to subtract. I have told the children to be a math detective and only use the clues (numbers) given.
1. First, make a big jump to the number taken away. (Part)
2. Next, circle the whole (Total) on the number line. This is the stop sign.
3. Last, draw little jumps to the whole. (Stop sign)
4. Count the little jumps and that is the difference.
Example:
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