Nebraska 2nd Grade Math Standards

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MA 2.1 Number

• MA.2.1.1 Students will demonstrate, represent, and show relationships among whole numbers within the base-ten number system.
  • MA 2.1.1.a Count within 1000, including skip-counting by 5s, 10s, and 100s starting at a variety of multiples of 5, 10 or 100.
  • MA 2.1.1.b Read and write numbers within the range of 0 – 1,000 using standard, word, and expanded forms.
  • MA 2.1.1.c Demonstrate that each digit of a three-digit number represents amounts of hundreds, tens and ones (e.g., 387 is 3 hundreds, 8 tens, 7 ones).
  • MA 2.1.1.d Demonstrate that 100 represents a group of ten tens.
  • MA 2.1.1.e Compare two three-digit numbers by using symbols <, =, and > and justify the comparison based on the meanings of the hundreds, tens, and ones.
• MA 2.1.2 Students will demonstrate the meaning of addition and subtraction with whole numbers and compute accurately.
  • MA 2.1.2.a Fluently (i.e. automatic recall based on understanding) add and subtract within 20.
  • MA 2.1.2.b Add and subtract within 100 using strategies based on place value, including the standard algorithm, properties of operations, and/or the relationship between addition and subtraction.
  • MA 2.1.2.c Mentally add or subtract 10 or 100 to/from a given number 100-900.
  • MA 2.1.2.d Add up to three two-digit numbers using strategies based on place value and understanding of properties.
  • MA 2.1.2.e Add and subtract within 1000, using concrete models, drawings, and strategies, which reflect understanding of place value and properties of operations.
  • MA 2.1.2.f Use addition to find the total number of objects arranged in an array no larger than five rows and five columns and write an equation to express the total (e.g., 3 + 3 + 3 = 9).

MA 2.2 Algebra

• MA 2.2.1 Students will demonstrate, represent, and show relationships with expressions and equations.
  • MA 2.2.1.a Identify a group of objects from 0-20 as even or odd by counting by 2’s or by showing even numbers as a sum of two equal parts.
• MA 2.2.3 Students will solve real-world problems involving addition and subtraction.
  • MA 2.2.3.a Solve real-world problems involving addition and subtraction within 100 in situations of addition and subtraction, including adding to, subtracting from, joining and separating, and comparing situations with unknowns in all positions using objects, models, drawings, verbal explanations, expressions and equations.
  • MA 2.2.3.b Create real-world problems to represent one- and two-step addition and subtraction within 100, with unknowns in all positions.

MA 2.3 Geometry

• MA 2.3.1 Students will identify and describe geometric characteristics and create two- and three-dimensional shapes.
  • MA 2.3.1.a Recognize and draw shapes having a specific number of angles, faces, or other attributes, including triangles, quadrilaterals, pentagons, and hexagons.
  • MA 2.3.1.b Partition a rectangle into rows and columns of equal sized squares. Count to find the total.
  • MA 2.3.1.c Divide circles and rectangles into two, three, or four equal parts. Describe the parts using the language of halves, thirds, fourths, half of, a third of, a fourth of.
  • MA 2.3.1.d Recognize that equal shares of identical wholes need not have the same shape.
• MA 2.3.3 Students will perform and compare measurements and apply formulas.
  • MA 2.3.3.a Solve real-world problems involving dollar bills, quarters, dimes, nickels, and pennies, using $ and ¢ symbols appropriately.
  • MA 2.3.3.b Identify and write time to five-minute intervals using analog and digital clocks and both a.m. and p.m.
  • MA 2.3.3.c Identify and use appropriate tools for measuring length (e.g., ruler, yardstick, meter stick, and measuring tape).
  • MA 2.3.3.d Measure the length of an object using two different length units and describe how the measurements relate to the size of the specific unit.
  • MA 2.3.3.e Measure and estimate lengths using inches, feet, centimeters, and meters.
  • MA 2.3.3.f Compare the difference in length of objects using inches and feet or centimeters and meters.
  • MA 2.3.3.g Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1, 2, etc., and represent whole number sums and differences within 100 on a number line.
  • MA 2.3.3.h Use measurement lengths and addition and subtraction within 100 to solve real-world problems.

MA 2.4 Data

• MA 2.4.1 Students will create displays that represent data.
  • MA 2.4.1.a Create and represent a data set using pictographs and bar graphs to represent a data set with up to four categories.
  • MA 2.4.1.b Create and represent a data set by making a line plot.
• MA 2.4.2 Students will analyze data to address the situation.
  • MA 2.4.2.a Interpret data using bar graphs with up to four categories. Solve simple comparison problems using information from the graphs.