2.ATO.1
Solve one- and two-step real-world/story problems using addition (as a joining action and as a part-part-whole action) and subtraction (as a separation action, finding parts of the whole, and as a comparison) through 99 with unknowns in all positions.
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 plotsAdd and subtract within 20 word problemsAdding 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 problemsAddition and subtraction word problems: superheroesSubtraction 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 problemAddition and subtraction word problems: gorillasAdding four two digit numbersMulti step addition word problemSubtraction word problem: crayonsLength word problem example (US Customary)

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