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|Math Forum, Ask Dr. Math Common Question|
|A selection of answers to questions about borrowing, regrouping, and carrying, such as "When doing subtraction problems like 100-99, why do the zeros become nines?" and "When you are subtracting a fraction, do you always take one away from the whole number?"|
|Levels:||Late Elem. (3-5)|
|Resource Types:||Frequently Asked Questions (FAQs)|
|Math Topics:||Subtraction, Number Sense/About Numbers, Problem-Solving|
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