Arizona Standards
Arizona 2nd Grade Math Standards
All 34 Arizona math standards for 2nd grade, each explained in plain English. The official wording is in Arizona Department of Education's document, linked at the end of this page.
34 standards
Operations and Algebraic Thinking
4 standards2.OA.A.1
Solve one- and two-step story problems by adding and subtracting within 100, and write an equation using a symbol for the unknown number.
2.OA.B.2
Add and subtract within 20 quickly and accurately, and by the end of the year know every sum of two one-digit numbers by heart.
2.OA.C.3
Decide whether a group of up to 20 objects has an odd or even count, like by pairing them up or counting by twos.
2.OA.C.4
Add to find the number of objects in an array with up to 5 rows and 5 columns, and write the total as a sum of equal addends, like 4 + 4 + 4 = 12.
Number and Operations in Base Ten
9 standards2.NBT.A.1
Explain the hundreds, tens and ones in a three-digit number, like 706 as 7 hundreds and 6 ones or as 70 tens and 6 ones, with 100 as ten tens and 300 as 3 hundreds.
2.NBT.A.2
Count within 1,000 and skip count by fives, tens and hundreds, like 250, 255, 260 or 300, 400, 500.
2.NBT.A.3
Read and write numbers to 1,000 as digits, in words and in expanded form, like 482 = 400 + 80 + 2.
2.NBT.A.4
Compare two three-digit numbers by their hundreds, tens and ones, and record the answer with >, = or <.
2.NBT.B.5
Add and subtract within 100 quickly and accurately, using place value and the link between addition and subtraction.
2.NBT.B.6
Add up to three two-digit numbers, like 24 + 38 + 15, using place value strategies and properties of addition.
2.NBT.B.7
Add and subtract within 1,000 with base-ten blocks or drawings, tie the work to place value, properties or the add-subtract link, and record it in writing.
2.NBT.B.8
Add or subtract 10 or 100 in their head for numbers between 100 and 900, like 450 + 100 = 550 or 450 - 10 = 440.
2.NBT.B.9
Explain why their strategies for adding and subtracting work, using place value and properties of operations, with drawings or objects as support.
Measurement and Data
10 standards2.MD.A.1
Measure how long an object is by choosing the right tool, like a ruler, yardstick, meter stick or measuring tape.
2.MD.A.2
Measure one object twice with two different units, like inches and feet, and explain why smaller units take more of them to cover the same length.
2.MD.A.3
Make a sensible guess at a length in inches, feet, centimeters or meters before measuring it.
2.MD.A.4
Measure two objects and say how much longer one is than the other, like 3 inches longer.
2.MD.B.5
Add and subtract within 100 to solve story problems about lengths that all use the same unit, like inches or centimeters.
2.MD.B.6
Show whole numbers as lengths from 0 on a number line, and use the number line to add and subtract within 100.
2.MD.C.7
Tell and write the time to the nearest five minutes on both clock faces and digital clocks, with a.m. and p.m.
2.MD.C.8
Solve story problems with collections of dollar bills, quarters, dimes, nickels and pennies, and write totals correctly with the $ and ¢ signs.
2.MD.D.9
Measure several objects to the nearest whole unit and show the results on a line plot.
2.MD.D.10
Make a picture graph and a bar graph with a one-unit scale for data in up to four categories, and use it to solve put-together, take-apart and compare problems.
Geometry
3 standards2.G.A.1
Identify and describe flat and solid shapes by their faces, angles, sides and vertices, and draw flat shapes with given features, like a pentagon or hexagon.
2.G.A.2
Divide a rectangle into equal rows and columns of matching smaller rectangles, then count them for the total, like 3 rows of 4 making 12.
2.G.A.3
Divide circles and rectangles into 2, 3 or 4 equal shares, name halves, thirds and fourths, call the whole two halves or four fourths, and see equal shares can look different.
Standards for Mathematical Practice
8 standards2.MP.1
Make a plan for a two-step story problem, check whether each step makes sense and keep at it until the answer fits the question.
2.MP.2
Switch between a story and its numbers, like writing 45 + 30 for two pieces of string and saying what the sum 75 means in inches.
2.MP.3
Defend a way to add or subtract three-digit numbers with base-ten blocks or drawings, and point out what works or does not in a classmate's method.
2.MP.4
Show real situations with bar graphs, number lines or equations, like using a number line to find how much longer one ribbon is than another.
2.MP.5
Pick tools that fit the job, like a ruler or meter stick for length, base-ten blocks for regrouping or coins for money problems.
2.MP.6
State units like inches or centimeters, use math words carefully and check that sums and differences within 1,000 are exact.
2.MP.7
Use the structure of place value, like seeing 300 + 40 + 6 as 346 or adding 10 by changing only the tens digit.
2.MP.8
Spot repeated patterns and turn them into shortcuts, like noticing that skip counting by 5s always lands on numbers ending in 0 or 5.
The official Arizona documents
- Arizona Mathematics Standards: Second Grade · adopted December 2016 · since 2018-19
The plain-English lines on this page are EMStudio's own explanations of Arizona's standards, not the official wording, which Arizona Department of Education publishes in the documents above. Codes and strand names identify each standard.