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North Carolina Standards

North Carolina 2nd Grade Math Standards

All 23 North Carolina math standards for 2nd grade, each explained in plain English. The official wording is in North Carolina Department of Public Instruction's document, linked at the end of this page.

23 standards

Operations and Algebraic Thinking

4 standards
NC.2.OA.1
Solve one-step story problems within 100 with the unknown in any spot, and two-step ones with single digits, using drawings and equations like ? + 25 = 60.
NC.2.OA.2
Add and subtract within 20 quickly using mental strategies such as making ten or near doubles, like thinking of 8 + 7 as 7 + 7 + 1.
NC.2.OA.3
Decide if a group of up to 20 objects is odd or even by pairing them, counting by 2s, splitting them into two equal groups, or writing doubles like 14 = 7 + 7.
NC.2.OA.4
Find the total in an array of up to 5 rows and 5 columns by adding equal rows, like 3 + 3 + 3 + 3 = 12.
Common Core 2.OA.4

Number and Operations in Base Ten

8 standards
NC.2.NBT.1
Explain that a three-digit number is hundreds, tens and ones, like 10 tens making a hundred, 400 as four hundreds, and 352 as 35 tens and 2 ones.
NC.2.NBT.2
Count up to 1000 from any starting number, and skip-count by 5s, 10s and 100s, like 300, 400, 500.
Common Core 2.NBT.2
NC.2.NBT.3
Read and write numbers up to 1,000 as numerals, in words and in expanded form, like 607 = 600 + 7 and six hundred seven.
NC.2.NBT.4
Decide which of two three-digit numbers is greater by checking hundreds first, then tens, then ones, and write it with >, = or <, like 438 < 483.
NC.2.NBT.5
Add and subtract within 100 smoothly, choosing a strategy that fits the numbers, like 63 - 29 as 63 - 30 + 1, and explain why strategies work.
NC.2.NBT.6
Add up to three two-digit numbers with place value strategies and number properties, like adding 24 + 15 + 36 by pairing 24 and 36 to make 60.
NC.2.NBT.7
Add and subtract within 1,000 with models, drawings or place value strategies, and connect the strategy to a written method, like 352 + 147.
NC.2.NBT.8
Add or subtract 10 or 100 in their head from any number between 100 and 900, like 540 + 100 = 640.
Common Core 2.NBT.8

Measurement and Data

9 standards
NC.2.MD.1
Choose the right tool, like a ruler, yardstick, meter stick or measuring tape, and use it to measure an object's length in standard units.
NC.2.MD.2
Measure the same object in two different units, like inches and centimeters, and explain why the smaller unit gives a bigger number.
Common Core 2.MD.2
NC.2.MD.3
Make sensible guesses of length in inches, feet, yards, centimeters or meters, like a door being about 2 meters tall.
NC.2.MD.4
Measure two objects and say how much longer one is than the other, like 3 inches longer.
Common Core 2.MD.4
NC.2.MD.5
Solve story problems within 100 about lengths in the same unit by adding or subtracting, writing an equation with a box for the unknown, like 45 + ? = 80 cm.
NC.2.MD.6
Show whole numbers as distances from 0 on a number line with evenly spaced marks, and use jumps on it to add and subtract within 100.
NC.2.MD.7
Tell and write the time to the nearest five minutes on both clock faces and digital clocks, with a.m. and p.m.
Common Core 2.MD.7
NC.2.MD.8
Solve story problems with coins worth up to 99¢ or with whole dollars, writing the ¢ and $ signs correctly, like 2 dimes and 3 nickels making 35¢.
NC.2.MD.10
Make picture graphs and bar graphs with a scale of 1 for data in up to four categories, and use them to solve joining, separating and comparing problems.

Geometry

2 standards
NC.2.G.1
Sketch and spot triangles, quadrilaterals, pentagons and hexagons from given features like 6 sides, and describe the faces, edges and corners of cubes and prisms.
NC.2.G.3
Split circles and rectangles into halves, thirds or fourths, name the shares, see the whole as 3 thirds or 4 fourths, and show equal shares can differ in shape.

The official North Carolina documents

The plain-English lines on this page are EMStudio's own explanations of North Carolina's standards, not the official wording, which North Carolina Department of Public Instruction publishes in the documents above. Codes and strand names identify each standard.