Topic C includes lessons 8-12. "Add fractions to and subtract fractions from whole numbers using equivalence and the number line as strategies. Add fractions making like units numerically. Add fractions with sums greater than 2. Subtract fractions making like units numerically. Subtract fractions greater than or equal to 1." EngageNY
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8963_Subtracting_mixed_numbers_with_regrouping_unlike_denominators_.html
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