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Indiana Standards

Indiana 2nd Grade Math Standards

All 20 Indiana math standards for 2nd grade, each explained in plain English. The official wording is in Indiana Department of Education's document, linked at the end of this page.

20 standards

Number Sense

5 standards
2.NS.1
Count up to 1,000 or more by ones, twos, fives, tens and hundreds, starting at any number, like 340, 350, 360.
2.NS.2
Read and write numbers to 1,000 in numerals, words, models and expanded form, and show the same number in different ways, like 527 = 500 + 20 + 7.
2.NS.3
Decide if a group of up to 20 objects is odd or even by pairing them up or splitting them into two equal groups and checking for one left over.
2.NS.4
Explain that 100 is ten tens, and model three-digit numbers and multiples of 100 in different ways with objects and drawings, like 352 as 3 hundreds and 52 ones.
2.NS.5
Compare two three-digit numbers by looking at the hundreds, tens and ones digits, and record the result with >, = or <, like 415 < 451.

Computation and Algebraic Thinking

4 standards
2.CA.1
Solve add, take away, join, split and compare story problems within 100 with the missing number anywhere, and use estimates to check if a sum makes sense.
2.CA.2
Add and subtract within 1,000, regrouping tens and hundreds when needed, using models, drawings and place value strategies, and explain how the strategy works.
2.CA.3
Show that switching the order or the grouping of numbers being added keeps the sum the same, like 4 + 9 = 9 + 4, so numbers can be added in any order.
2.CA.4
Make and continue number patterns that add or subtract within 1,000, and state the rule, like 800, 750, 700 takes away 50 each time.

Geometry

4 standards
2.G.1
Name, describe and sort shapes like triangles, squares, rectangles, cubes and boxes by their sides, corners and faces, and draw flat shapes.
2.G.2
Explore and predict what new shapes form when flat or solid shapes are put together or taken apart, like two triangles making a square.
2.G.3
Divide a rectangle into rows and columns of equal squares and count them to find how many squares there are in all.
2.G.4
Split circles and rectangles into halves, thirds or fourths, see that three thirds or four fourths make one whole, and that equal shares can have different shapes.

Measurement

6 standards
2.M.1
Explain how inches, feet and yards relate, like 12 inches in a foot and 3 feet in a yard, and how centimeters relate to meters.
2.M.2
Choose a ruler, yardstick, meter stick or tape measure to estimate and measure lengths to the nearest inch, foot, yard, centimeter or meter.
2.M.3
Estimate and measure how much a container holds in cups and pints, and add or subtract to solve real problems with capacities in the same unit.
2.M.4
Read and write time to the nearest five minutes on analog clocks with a.m. and p.m., and solve problems about elapsed time in whole or half hours.
2.M.5
Know how units of time relate, like 60 seconds in a minute, 60 minutes in an hour, 24 hours in a day, 7 days in a week and 12 months in a year.
2.M.6
Count the total value of a mix of pennies, nickels, dimes, quarters and dollar bills, like 2 quarters and 3 dimes make 80 cents.

Data Analysis

1 standard
2.DA.1
Gather survey and investigation data, show it in bar graphs and picture graphs with scales of 2, 5, 10 or 100, and interpret it by adding, subtracting and comparing.

The official Indiana documents

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