2.CAR.6
Use concrete models, drawings, or equations to solve addition and subtraction problems within 1000.
Khan Academy ResourcesSubtract within 100 using place value blocksAdd within 100 using place value blocksAdd within 100 using a number lineSubtract within 1,000 using place value blocksSubtract on a number lineAdding up to four 2-digit numbersAdd on a number lineAdd within 1,000 using place value blocksAdd using groups of 10 and 100Select strategies for adding within 100Break apart 3-digit addition problemsBreak apart 2-digit addition problemsSubtract within 100 using a number lineSelect strategies for adding within 1000Add 2-digit numbers by making tensAdding by making a group of 10Breaking apart 3-digit addition problemsSubtracting 3-digit numbers (no regrouping)Adding 10 or 100Missing numbers in addition and subtractionAdding 1s, 10s, and 100sAddition and subtraction with number linesAdding 2-digit numbers without regroupingSubtracting 1s using place valueAdding and subtracting on number lineAddition using groups of 10 and 100Subtracting a 1-digit number with regroupingSubtracting 1s, 10s, and 100sSubtracting 10s using place valueUnderstanding place value when adding onesStrategies for adding 2-digit numbersAdding 3-digit numbers (no regrouping)Subtracting two-digit numbers without regroupingAdding with regroupingUnderstanding place value when adding tensSubtracting 1, 10, or 100Breaking apart 2-digit addition problemsAdding 53+17 by making a group of 10Subtracting with place value blocks (regrouping)

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