Math standards

2nd Grade Math Standards

All 26 2nd grade Common Core math standards, grouped by area. Each page has a detailed description of the standard, an instructional video, sample questions, and curriculum-specific guidance.

Numbers & Place Value

2.NBT.A.1Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and onesSee guide
2.NBT.A.2Count within 1000; skip-count by 5s, 10s, and 100sSee guide
2.NBT.A.3Read and write numbers to 1000 using base-ten numerals, number names, and expanded formSee guide
2.NBT.A.4Compare two three-digit numbersSee guide
2.NBT.B.5Fluently add and subtract within 100See guide
2.NBT.B.6Add up to four two-digit numbersSee guide
2.NBT.B.7Add and subtract within 1000See guide
2.NBT.B.8Mentally add 10 or 100 to a given number 100–900See guide
2.NBT.B.9Explain why addition and subtraction strategies workSee guide

Problem Solving

2.OA.A.1Use addition and subtraction within 100 to solve word problemsSee guide
2.OA.B.2Fluently add and subtract within 20See guide
2.OA.C.3Determine whether a group of objects (up to 20) has an odd or even number of membersSee guide
2.OA.C.4Use addition to find the total number of objects arranged in rectangular arraysSee guide

Measurement & Data

2.MD.A.1Measure the length of an object by selecting and using appropriate toolsSee guide
2.MD.A.2Measure the length of an object twice, using length units of different lengthsSee guide
2.MD.A.3Estimate lengths using units of inches, feet, centimeters, and metersSee guide
2.MD.A.4Measure to determine how much longer one object is than anotherSee guide
2.MD.B.5Use addition and subtraction within 100 to solve word problems involving lengthsSee guide
2.MD.B.6Represent whole numbers as lengths from 0 on a number line diagramSee guide
2.MD.C.7Tell and write time from analog and digital clocks to the nearest five minutesSee guide
2.MD.C.8Solve word problems involving dollar bills, quarters, dimes, nickels, and penniesSee guide
2.MD.D.9Generate measurement data by measuring lengths of several objectsSee guide
2.MD.D.10Draw a picture graph and a bar graph to represent a data set with up to four categoriesSee guide

Geometry

2.G.A.1Recognize and draw shapes having specified attributesSee guide
2.G.A.2Partition a rectangle into rows and columns of same-size squaresSee guide
2.G.A.3Partition circles and rectangles into two, three, or four equal sharesSee guide

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