Skills available for
West Virginia second-grade math standards
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2 Represent and solve problems involving addition and subtraction.
2.M.2.OA.1 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.
2 Work with equal groups of objects to gain foundations for multiplication.
2.M.2.OA.3 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 and write an equation to express an even number as a sum of two equal addends.
2.M.2.NBT.1 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 and understand the following as special cases:
2.M.2.NBT.1.a 100 can be thought of as a bundle of ten tens - called a "hundred."
2.M.2.NBT.7 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 and 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.
2.M.2.MD.2 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 and compare and contrast plane and solid geometric shapes.
2.M.2.MD.3 Estimate lengths using units of inches, feet, centimeters, and meters.
2.M.2.MD.5 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.
2.M.2.MD.6 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.
2.M.2.MD.9 generate measurement data by measuring lengths of several objects to the nearest whole unit or by making repeated measurements of the same object and show the measurements by making a line plot, where the horizontal scale is marked off in whole-number units.
2.M.2.MD.10 draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories and solve simple put-together, take-apart and compare problems using information presented in a bar graph.
2.M.2.G.1 recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces (sizes are compared directly or visually, not compared by measuring) and identify triangles, quadrilaterals, pentagons, hexagons and cubes.
2.M.2.G.3 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., describe the whole as two halves, three thirds, four fourths and recognize that equal shares of identical wholes need not have the same shape.