2.OA.A.1
Use addition and subtraction within 100 to solve one- and two-step word problems. Represent a word problem as an equation with a symbol for the unknown.
Example Problems
Jack is collecting marbles. Jack has marbles, and his friend has 12 marbles. All together, they have 31 marbles.
Write and solve an equation that describes the situation in order to find out how many marbles Jack has.
Write and solve an equation that describes the situation in order to find out how many marbles Jack has.
A team is organizing a science fair. They buy sets of sample containers, with 9 containers in each set. All together, they have 63 containers for the fair.
Write and solve an equation that describes the situation in order to find out how many sets of containers they bought.
Write and solve an equation that describes the situation in order to find out how many sets of containers they bought.
A family is assembling craft kits for an arts workshop. They buy boxes, each containing 12 craft items. Altogether, they have 120 craft items to use.
Write and solve an equation that describes the situation in order to find out how many boxes they bought.
Write and solve an equation that describes the situation in order to find out how many boxes they bought.
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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