5.3.A
Estimate to determine solutions to mathematical and real-world problems involving addition, subtraction, multiplication, or division.
Khan Academy ResourcesSubtracting decimalsEstimating with dividing decimalsMultiply by taking out factors of 102-step estimation word problemsEstimate to subtract multi-digit numbers2-step estimation word problemsEstimate decimal addition (thousandths)Estimating with subtracting decimalsMulti-digit addition and subtraction estimation word problemsEstimate to add multi-digit numbersEstimate decimal subtraction (thousandths)Estimate multi-digit multiplicationMulti-digit division estimation word problemsEstimating with multiplying decimalsSubtract decimals visuallyEstimating with adding decimalsEstimate multi-digit division problemsEstimating with multiplying decimals and whole numbersEstimating decimal addition (thousandths)2-step estimation problem: marblesEstimating decimal subtractionEstimating decimal multiplicationStrategies for multiplying multiples of 10, 100 and 1000Estimating decimal additionEstimating to subtract multi-digit numbersEstimating multi-digit divisionEstimating multi-digit multiplicationEstimating decimal subtraction (thousandths)Estimating multi-digit sumsStrategies for dividing multiples of 10, 100, and 1000Estimating decimal division Estimating with multiplying decimals and whole numbersEstimating multi-digit division word problems2-step estimation word problemEstimating multi-digit addition and subtraction word problems

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