Oklahoma Standards. is one of the four basic operations of arithmetic, with the others being subtraction, multiplication and division. The addition of two whole numbers is the total amount of those quantities combined.

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Study GuideAdd/Subtract Fractions

Worksheet/Answer keys

Add/Subtract Fractions

Worksheet/Answer keysAdd/Subtract Fractions

Worksheet/Answer keysAdd/Subtract Fractions

OK.5.2. Number Sense and Operation - The student will use numbers and number relationships to acquire basic facts. The student will estimate and compute with whole numbers, fractions, and decimals.

5.2.2. Number Operations

5.2.2.b. Estimate add, or subtract fractions (including mixed numbers) to solve problems using a variety of methods (e.g., use fraction strips, use area models, find a common denominator).