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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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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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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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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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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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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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Solve a variety of subtraction problems, including word problems, vertical and horizontal equations, and missing digit questions.
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This file has 30 task cards with money subtraction on them.
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This page includes word problems, fill-in-the-blanks, and simple subtraction problems.
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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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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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These 3-digit subtraction problems require students to borrow across zero. (example: 400-126)
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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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Read about the endangered cow breeds on Grandpa McDonald's farm. Then answer the math questions that follow.
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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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Choose numbers from the circles and add them together. Add six pairs.
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Write the correct addition/subtraction fact family for each set of numbers.
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Use base 10 blocks (place value blocks) to solve the subtraction problems on this worksheet.
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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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Simple 2-digit subtraction problems that don't require borrowing.
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Another set of add-subtract number bonds.
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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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Use the grid puzzle to solve the subtraction problems; 4-digit subtraction with zeros. (example 3,400 - 454)
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Graph paper subtraction will ensure kids can line up their place value columns perfectly.
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This math page contains problems relating to addition, subtraction, and telling time.
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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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Subtract the three-digit numbers to find the differences. All problems require some borrowing. There are also two word problems.
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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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2-digit with regrouping subtraction problems inside of turkey pictures.
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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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Count by 3's. Preform skip counting. Addition and subtraction.
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Subtraction story problems that involve borrowing.  (2 and 3-digit numbers)
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This subtraction worksheet has pictures of cute dragons.  3-digits with borrowing.
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Measurement with ruler along with adding and subtracting. What fraction of the marbles are black?
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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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A cute doggie-themed subtraction practice page with double digit numbers
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This worksheet allows students to practice working with the properties of addition using only basic numbers.
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Subtract to find the missing addends  (example: 71 + __ = 143)
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Subtraction problems with money amounts; Winter snowmen pictures
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Number patterns, solve word problem with subtraction. Fractions using tiles.
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Color the picture of the knight, dragon, and castle. Then solve the subtraction problems.
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This intermediate-level worksheet features larger numbers into the thousands and money amounts.
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Add or subtract to find the missing part of each number bond.
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More fact family subtraction-addition fact family triangles to solve.
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Students must determine whether they need to add or subtract to solve each problem.
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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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Another worksheet with fact family houses in which students much write the correct numbers.
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Practice 3-digit Subtracting with borrowing / regrouping.  Check by adding.
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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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Double-digit subtraction problems that do NOT require borrowing.
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More addition-subtraction number family boxes.
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Fractions in a circle. Count coins and subtract money word problems.
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Practice 3-digit Subtracting problems that require borrowing across zero
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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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The mixed review problems on this page include adding, subtracting, counting money
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A dozen 2-digit subtraction problems that require borrowing from the tens column.
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Practice subtracting 3-digit numbers with borrowing / regrouping.
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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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Find the missing numbers. Geometry and time challenges.
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Double-digit subtraction problems that do require borrowing.
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Subtraction arrow chain problems; 2-digits minus 1-digit; Regrouping
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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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Mixture of different types of subtraction problems, including a couple of word problems.  (3 and 4-digit) 
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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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Write the correct numbers in each addition/subtraction fact family triangle.
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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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Another monster-themed worksheet.  This one has 2-digit subtraction problems that require borrowing.
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The two-digit subtraction problems on this worksheet do NOT require students to borrow/regroup.
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Use addition or subtraction to determine the missing number in each part-part-whole box.
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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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Rewrite each problem vertically, then solve.  Students required to "line up the digits" correctly.
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Subtraction problems with 3-digit quantities; Requires borrowing; Crab pictures
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