7.8
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.
Example Problems
Evaluate:
Evaluate:
Evaluate:
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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