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Colorado Standards

Colorado 2nd Grade Math Standards

All 10 Colorado math standards for 2nd grade, each explained in plain English. The official wording is in Colorado Department of Education's document, linked at the end of this page.

10 standards

Number and Quantity

2 standards
MA.2.NBT.A
Explain that a three-digit number is hundreds, tens, and ones, skip-count by 5s, 10s, and 100s within 1,000, and read, write in expanded form, and compare such numbers.
MA.2.NBT.B
Add and subtract within 100 fluently and within 1,000 with models, add up to four two-digit numbers, mentally add or take away 10 or 100, and explain why the strategies work.

Algebra and Functions

3 standards
MA.2.OA.A
Solve one- and two-step word problems within 100 about joining, separating, and comparing amounts, with the missing number in any place, using drawings and equations.
MA.2.OA.B
Add and subtract within 20 quickly using mental strategies, and know all sums of two one-digit numbers by heart by the end of the year.
MA.2.OA.C
Tell if up to 20 objects make an odd or even number, writing evens as doubles like 8 = 4 + 4, and total arrays up to 5 by 5 with repeated addition.

Data, Statistics, and Probability

4 standards
MA.2.MD.A
Measure lengths with tools like rulers and meter sticks, compare measures made with two different units, estimate in inches, feet, centimeters, and meters, and find length differences.
MA.2.MD.B
Solve length word problems within 100 using ruler drawings and equations, and show whole numbers, sums, and differences within 100 as jumps on a number line.
MA.2.MD.C
Tell and write time to the nearest five minutes with a.m. and p.m., and solve word problems with bills and coins using the $ and ¢ signs.
MA.2.MD.D
Measure several objects to the nearest whole unit and show the data on a line plot, then draw picture and bar graphs with up to four categories and answer questions about them.

Geometry

1 standard
MA.2.G.A
Draw shapes with a given number of angles or faces, name shapes like pentagons and cubes, split rectangles into rows of equal squares, and divide shapes into halves, thirds, and fourths.

The official Colorado documents

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