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2nd Grade Common Core: 2.NBT.9

Common Core Identifier: 2.NBT.9 / Grade: 2
Curriculum: Number And Operations In Base Ten: Use Place Value Understanding And Properties Of Operations To Add And Subtract.
Detail: Explain why addition and subtraction strategies work, using place value and the properties of operations.3
75 Common Core State Standards (CCSS) aligned worksheets found:
Solve each 2-digit addition problem. Explain why you did or did not carry the one in each problem.
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On this worksheet, students solve the problems and explain why they did or did not regroup.
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After decoding the numbers using the key, students will subtract to find the differences.
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This worksheet includes 8 subtraction problems of various styles, such as word problems, simple equations, and filling in the missing digit. Some require regrouping.
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Subtract hundreds and thousands on this mental math worksheet. Why was the music teacher locked out of her classroom? To find out, write the answer to each problem. (example: 9,000-4,000)
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On the top of this page, there are pictures of shapes with 3-digit numbers in them. Students find differences between pairs of shapes. For example: Subtract the number in the
pentagon from the number
in the octagon.
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James Cotter's mother is a teacher and she's setting up a classroom for the new year. James helps his mother pass out supplies, but he needs to use his math skills to find out what supplies are needed.
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Solve a variety of subtraction problems, including word problems, vertical and horizontal equations, and missing digit questions.
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Read the story about a Safari Adventure, and answer the math problems that go along with it.
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Use the key at the top of the page to decode the symbol math problems. Then solve each one.
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This file has 30 task cards with money subtraction on them.
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These 3-digit subtraction problems require students to borrow across zero. (example: 400-126)
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This page includes word problems, fill-in-the-blanks, and simple subtraction problems.
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At the top of the page, students are presented with a series of shapes. They subtract numbers from pairs of shapes and find the differences. For example: Subtract the number in the rhombus from the number in the trapezoid.
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Patty Potter and her class plant a flower garden on the school grounds. Read the story and answer the math questions
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Choose numbers from the circles and add them together. Add six pairs.
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Complete the subtraction problems and use your answers to put together the puzzle pieces and reveal a fun Groundhog Day image!
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Cut out the math cards. Solve the subtraction problems. Then sort the answers into "even differences" and "odd differences." After that, students glue the math cards in the correct columns on the t-chart.
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Read about the endangered cow breeds on Grandpa McDonald's farm. Then answer the math questions that follow.
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Graph paper subtraction will ensure kids can line up their place value columns perfectly.
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2-digit with regrouping subtraction problems inside of turkey pictures.
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What number is shown by the place value blocks? Subtract to find out how many boys are in Miss Minn's class. Write the time shown on the clock.
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Another set of add-subtract number bonds.
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This worksheet will help students use place value blocks (base 10 blocks) to practice subtraction with borrowing.
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Use the grid puzzle to solve the subtraction problems; 4-digit subtraction with zeros. (example 3,400 - 454)
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Subtracting money with zero on graph paper.  One digit per box will help kids line up columns.  (example: $9.00 - 3.48)
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This math page contains problems relating to addition, subtraction, and telling time.
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Count how many marbles Peyton has after his brother and sister give him more. How much money is left after a buying a movie ticket.
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Simple 2-digit subtraction problems that don't require borrowing.
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Subtract the three-digit numbers to find the differences. All problems require some borrowing. There are also two word problems.
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Use base 10 blocks (place value blocks) to solve the subtraction problems on this worksheet.
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There are three short-answer questions on this page for thinking about and discussing the properties of addition.
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Write the correct addition/subtraction fact family for each set of numbers.
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Count by 3's. Preform skip counting. Addition and subtraction.
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Add or subtract to find the missing part of each number bond.
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A cute doggie-themed subtraction practice page with double digit numbers
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Color the picture of the knight, dragon, and castle. Then solve the subtraction problems.
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This worksheet allows students to practice working with the properties of addition using only basic numbers.
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Number patterns, solve word problem with subtraction. Fractions using tiles.
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This subtraction worksheet has pictures of cute dragons.  3-digits with borrowing.
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Subtract to find the missing addends  (example: 71 + __ = 143)
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This intermediate-level worksheet features larger numbers into the thousands and money amounts.
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More fact family subtraction-addition fact family triangles to solve.
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Subtract the two-digit numbers to find the differences. Most problems require regrouping (borrowing). The word problems and picture features a box of colorful crayons.
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Subtraction story problems that involve borrowing.  (2 and 3-digit numbers)
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Subtraction problems with money amounts; Winter snowmen pictures
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Measurement with ruler along with adding and subtracting. What fraction of the marbles are black?
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This worksheet includes the associative, commutative, and the identity (zero) properties. Students must write the value of each variable.
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Another worksheet with fact family houses in which students much write the correct numbers.
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Subtracting on graph paper gives kids plenty of room to write their numbers and illustrates place value
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Students must determine whether they need to add or subtract to solve each problem.
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Give values of the digits in three-digit number. Subtract to find out how many tulips are in a garden. Color the odd and even tiled numbers.
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More addition-subtraction number family boxes.
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A dozen 2-digit subtraction problems that require borrowing from the tens column.
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Practice 3-digit Subtracting problems that require borrowing across zero
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Subtracting money on grid paper.  One digit per box ensures kids line up numbers correctly.  (example: $9.26 - 2.88)
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The mixed review problems on this page include adding, subtracting, counting money
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Fractions in a circle. Count coins and subtract money word problems.
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Double-digit subtraction problems that do NOT require borrowing.
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Practice subtracting 3-digit numbers with borrowing / regrouping.
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Practice 3-digit Subtracting with borrowing / regrouping.  Check by adding.
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Practice recognizing and working with the properties of addition problems. This is a good introductory worksheet that contains only simple 1 and 2-digit numbers.
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Write the correct numbers in each addition/subtraction fact family triangle.
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Subtraction problems with 3-digit quantities; Requires borrowing; Crab pictures
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Mixture of different types of subtraction problems, including a couple of word problems.  (3 and 4-digit) 
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Another monster-themed worksheet.  This one has 2-digit subtraction problems that require borrowing.
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Use addition or subtraction to determine the missing number in each part-part-whole box.
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Double-digit subtraction problems that do require borrowing.
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Rewrite each problem vertically, then solve.  Students required to "line up the digits" correctly.
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Michael receives $9.99 for his 9th birthday.  Subtract each time Michael spends money to show how much is left.
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Find the missing numbers. Geometry and time challenges.
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Write how much money is left after a purchase. Write the time from a clock. Choose geometric shapes.
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The two-digit subtraction problems on this worksheet do NOT require students to borrow/regroup.
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Subtraction arrow chain problems; 2-digits minus 1-digit; Regrouping
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Solve the subtraction problems and color the answers on the bingo boards.  Can you get a bingo?
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