Second Grade Mathematics
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Second Grade Mathematics
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2.OA.1Operations And Algebraic ThinkingRepresent And Solve Problems Involving Addition And Subtraction.Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.1
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2.OA.2Operations And Algebraic ThinkingAdd And Subtract Within 20.Fluently add and subtract within 20 using mental strategies.2 By end of Grade 2, know from memory all sums of two one-digit numbers.
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2.OA.3Operations And Algebraic ThinkingWork With Equal Groups Of Objects To Gain Foundations For Multiplication.Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.
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2.OA.4Operations And Algebraic ThinkingWork With Equal Groups Of Objects To Gain Foundations For Multiplication.Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.
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2.NBT.1Number And Operations In Base TenUnderstand Place Value.Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases:
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2.NBT.1.aNumber And Operations In Base TenUnderstand Place Value.100 can be thought of as a bundle of ten tens — called a “hundred.”
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2.NBT.1.bNumber And Operations In Base TenUnderstand Place Value.The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).
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2.NBT.2Number And Operations In Base TenUnderstand Place Value.Count within 1000; skip-count by 5s, 10s, and 100s.
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2.NBT.3Number And Operations In Base TenUnderstand Place Value.Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.
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2.NBT.4Number And Operations In Base TenUnderstand Place Value.Compare two three-digit numbers based on meanings of the hundreds, tens, and ones digits, using >, =, and < symbols to record the results of comparisons.
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2.NBT.5Number And Operations In Base TenUse Place Value Understanding And Properties Of Operations To Add And Subtract.Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
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2.NBT.6Number And Operations In Base TenUse Place Value Understanding And Properties Of Operations To Add And Subtract.Add up to four two-digit numbers using strategies based on place value and properties of operations.
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2.NBT.7Number And Operations In Base TenUse Place Value Understanding And Properties Of Operations To Add And Subtract.Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three- digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.
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2.NBT.8Number And Operations In Base TenUse Place Value Understanding And Properties Of Operations To Add And Subtract.Mentally add 10 or 100 to a given number 100–900, and mentally subtract 10 or 100 from a given number 100–900.
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2.NBT.9Number And Operations In Base TenUse Place Value Understanding And Properties Of Operations To Add And Subtract.Explain why addition and subtraction strategies work, using place value and the properties of operations.3
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2.MD.1Measurement And DataMeasure And Estimate Lengths In Standard Units.Measure the length of an object by selecting and using appropriate tools such as rulers, yardsticks, meter sticks, and measuring tapes.
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2.MD.2Measurement And DataMeasure And Estimate Lengths In Standard Units.Measure the length of an object twice, using length units of different lengths for the two measurements; describe how the two measurements relate to the size of the unit chosen.
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2.MD.3Measurement And DataMeasure And Estimate Lengths In Standard Units.Estimate lengths using units of inches, feet, centimeters, and meters.
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2.MD.4Measurement And DataMeasure And Estimate Lengths In Standard Units.Measure to determine how much longer one object is than another, expressing the length difference in terms of a standard length unit.
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2.MD.5Measurement And DataRelate Addition And Subtraction To Length.Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units, e.g., by using drawings (such as drawings of rulers) and equations with a symbol for the unknown number to represent the problem.
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2.MD.6Measurement And DataRelate Addition And Subtraction To Length.Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1, 2, ..., and represent whole-number sums and differences within 100 on a number line diagram.
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2.MD.7Measurement And DataWork With Time And Money.Tell and write time from analog and digital clocks to the nearest five minutes, using a.m. and p.m.
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2.MD.8Measurement And DataWork With Time And Money.Solve word problems involving dollar bills, quarters, dimes, nickels, and pennies, using $ and ¢ symbols appropriately. Example: If you have 2 dimes and 3 pennies, how many cents do you have?
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2.MD.9Measurement And DataRepresent And Interpret Data.Generate measurement data by measuring lengths of several objects to the nearest whole unit, or by making repeated measurements of the same object. Show the measurements by making a line plot, where the horizontal scale is marked off in whole-number units.
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2.MD.10Measurement And DataRepresent And Interpret Data.Draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories. Solve simple put- together, take-apart, and compare problems4 using information presented in a bar graph.
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2.G.1GeometryReason With Shapes And Their Attributes.Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces.5 Identify triangles, quadrilaterals, pentagons, hexagons, and cubes.
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2.G.2GeometryReason With Shapes And Their Attributes.Partition a rectangle into rows and columns of same-size squares and count to find the total number of them.
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2.G.3GeometryReason With Shapes And Their Attributes.Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.
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Numbers & Operations
Measurement & Data
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