7A.17
Solve multi-step real-world and mathematical problems involving rational numbers (integers, signed fractions, and decimals), converting between forms as needed. Assess the reasonableness of answers using mental computation and estimation strategies. [Grade 7, 8]
Khan Academy ResourcesRewriting decimals as fractions challengeAdding & subtracting rational numbersNegative number addition and subtraction: word problemsRational number word problemsInterpreting negative number statementsRational number word problem: checking accountRational number word problem: computersNegative number word problem: AlaskaRational number word problem: iceAdding & subtracting rational numbers: 0.79 - 4/3 - 1/2 + 150%Rational number word problem: cosmeticsRational number word problem: stockAdding & subtracting rational numbers: 79% - 79.1 - 58 1/10Interpreting negative number statementsRational number word problem: cabNegative number word problem: temperaturesRational number word problem: school report

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