2nd Grade Math (West Virginia CCR Standards)

Operations and Algebraic Thinking – Addition and subtraction problems

• M.2.1 Solve one- and two-step addition and subtraction word problems within 100 with the unknown in any position, using drawings or equations.

Operations and Algebraic Thinking – Addition and subtraction; patterns in arithmetic

• M.2.2 Add and subtract within 20 quickly and accurately with mental strategies; know all sums of two one-digit numbers from memory.
• M.2.3 Find the rule (add 2, 3, 5 or 10) in a given number pattern.

Operations and Algebraic Thinking – Equal groups as a foundation for multiplication

• M.2.4 Decide whether a group of up to 20 objects is odd or even and write an even number as a sum of two equal addends.
• M.2.5 Use addition to total arrays of up to 5 rows and 5 columns and write an equal-addends equation for them.

Number and Operations in Base Ten – Place value

• M.2.6 Understand that the digits of a three-digit number stand for hundreds, tens and ones.
  • a. Know that 100 is a bundle of ten tens, called a hundred.
  • b. Know that 100, 200 … 900 mean one to nine hundreds with no tens or ones.
• M.2.7 Count within 1000 and skip count by 5s, 10s and 100s.
• M.2.8 Read and write numbers to 1000 as numerals, number names and expanded form.
• M.2.9 Compare three-digit numbers by place value using >, = and <, and order numbers by place value.

Number and Operations in Base Ten – Place value and properties to add and subtract

• M.2.10 Add and subtract within 100 fluently using place value, properties and the link between addition and subtraction.
• M.2.11 Add up to four two-digit numbers using place value and properties of operations.
• M.2.12 Add and subtract within 1000 with models, drawings and place value strategies and relate them to written methods, including regrouping.
• M.2.13 Mentally add or subtract 10 or 100 to or from any number from 100 to 900.
• M.2.14 Explain why addition and subtraction strategies work using place value and properties of operations.

Measurement and Data – Measure and estimate length in standard units

• M.2.15 Measure length by choosing and using a suitable tool such as a ruler, yardstick, meter stick or measuring tape.
• M.2.16 Measure one object with two different units and explain how the results relate to the unit sizes.
• M.2.17 Estimate lengths in inches, feet, centimeters and meters.
• M.2.18 Measure how much longer one object is than another and give the difference in a standard unit.

Measurement and Data – Relate addition and subtraction to length

• M.2.19 Solve addition and subtraction word problems within 100 about lengths in the same units, using drawings and equations.
• M.2.20 Show whole numbers as lengths on a number line and show sums and differences within 100 on it.

Measurement and Data – Time and money

• M.2.21 Tell and write time to the nearest five minutes on analog and digital clocks, using a.m. and p.m.
• M.2.22 Solve word problems with bills and coins, using the $ and ¢ symbols correctly.

Measurement and Data – Represent and interpret data

• M.2.23 Measure several objects to the nearest whole unit and show the data on a line plot with a whole-number scale.
• M.2.24 Draw picture graphs and bar graphs (single-unit scale) for up to four categories and solve problems with the data.

Geometry – Shapes and their attributes

• M.2.25 Recognize and draw shapes with given attributes; identify triangles, quadrilaterals, pentagons, hexagons and cubes.
• M.2.26 Split a rectangle into rows and columns of equal squares and count them.
• M.2.27 Split circles and rectangles into halves, thirds and fourths, describe the shares and see that equal shares need not be the same shape.