2.OA.1
Use addition and subtraction strategies to estimate, then solve one- and two-step word problems (using numbers up to 100) involving situations of adding to, taking from, putting together, taking apart and comparing, with unknowns in all positions (e.g., by using objects, drawings and equations). Record and explain using equation symbols and a symbol for the unknown number to represent the problem.
Example Problems
Solve the equation:
Solve the equation:
Solve the equation:
Khan Academy ResourcesSolve problems with picture graphsAdd and subtract on the number line word problemsSubtraction word problems within 1002-step subtraction word problems within 100Find the missing number (add and subtract within 100)Adding up to four 2-digit numbers word problemsLength word problemsSolve problems with line plotsAdding up to four 2-digit numbers2-step addition word problems within 100Solve problems with bar graphsLength word problem (US customary)Addition word problems within 100Adding and subtracting on number line word problemsSubtraction word problem: basketballAdding multiple 2-digit numbers word problemsAdding two digit numbers on a number linePicture graphsAddition word problem: horsesLength word problemsMulti-step subtraction word problemAdding four two digit numbersMulti step addition word problemSubtraction word problem: crayonsLength word problem example (US Customary)

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