2nd Grade Math (Kentucky Academic Standards)

Operations and Algebraic Thinking (OA)

• KY.2.OA.1 Solve one- and two-step word problems within 100 with drawings and equations.
• KY.2.OA.2 Add and subtract within 20 fluently using mental strategies.
• KY.2.OA.3 Decide whether a group of up to 20 is odd or even and write even numbers as doubles.
• KY.2.OA.4 Find the total in arrays up to 5 by 5 by adding and write an equal-addend equation.

Number and Operations in Base Ten (NBT)

• KY.2.NBT.1 Understand three-digit numbers as hundreds, tens and ones.
  • a. Know that 100 is a bundle of ten tens.
  • b. Know that 100, 200 … 900 are hundreds with no tens or ones.
• KY.2.NBT.2 Count forward and back within 1,000 and skip count by 5s, 10s and 100s.
• KY.2.NBT.3 Read and write numbers to 1,000 as numerals, number names and expanded form.
• KY.2.NBT.4 Compare three-digit numbers with >, = and <.
• KY.2.NBT.5 Add and subtract within 100 fluently using place-value strategies.
• KY.2.NBT.6 Add up to four two-digit numbers using place-value strategies.
• KY.2.NBT.7 Add and subtract within 1,000 using models, strategies and equations.
  • a. Solve problems with models, place value, properties and the link between operations.
  • b. Add or subtract like place values, making or breaking tens or hundreds when needed.
• KY.2.NBT.8 Add or subtract 10 or 100 mentally to or from numbers 100 to 900.
• KY.2.NBT.9 Explain why addition and subtraction strategies work using place value.

Measurement and Data (MD)

• KY.2.MD.1 Measure length with suitable tools such as rulers, yardsticks and tape measures.
• KY.2.MD.2 Measure an object twice with different units and explain how the measures relate.
• KY.2.MD.3 Estimate lengths in inches, feet, yards, centimeters and meters.
• KY.2.MD.4 Measure how much longer one object is than another in one unit.
• KY.2.MD.5 Solve length word problems within 100 in the same units with drawings and equations.
• KY.2.MD.6 Show whole numbers, sums and differences within 100 on a number line.
• KY.2.MD.7 Tell and write time to the nearest five minutes using a.m. and p.m.
• KY.2.MD.8 Solve money word problems within 100 using $ or ¢ (not both).
• KY.2.MD.9 Answer measurement questions by collecting and plotting length data.
  • a. Ask a statistical question about measurements.
  • b. Collect length data by measuring objects or repeating one measurement.
  • c. Show the measurements on a dot plot with a whole-number scale.
• KY.2.MD.10 Make picture graphs and single-unit bar graphs for up to four categories.

Geometry (G)

• KY.2.G.1 Draw shapes with given features and name triangles, quadrilaterals, pentagons, hexagons and cubes.
• KY.2.G.2 Split a rectangle into equal rows and columns of squares and count them.
• KY.2.G.3 Split circles and rectangles into equal shares and name halves, thirds and fourths.