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Number lines are a great way to compare numbers. They also help you to order numbers, understand place value and estimate where a number is. Watch this video to find out more. This number line shows ...

Greg Duncan before delivering the keynote address at the Silicon Valley Education Foundation’s forum on early math. Credit: Lillian Mongeau, EdSource Today A study showing that early math skills are ...

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Number lines can help you see where a number is compared to another number. You can create a number line that goes up to any number. You can then look at the part of the number line that's the most ...