North Dakota
Skills available for North Dakota second-grade math standards
Standards are in black and IXL math skills are in dark green. Hold your mouse over the name of a skill to view a sample question. Click on the name of a skill to practice that skill.
Show alignments for:
- North Dakota Content Standards (adopted in 2023): Grade 2 North Dakota Content Standards (adopted in 2023): Grade 2
- North Dakota Content Standards (adopted in 2023): Mathematical Practices North Dakota Content Standards (adopted in 2023): Mathematical Practices
- North Dakota Content Standards North Dakota Content Standards
- North Dakota Content Standards (Common Core) North Dakota Content Standards (Common Core)
Actions
2.NO Number and Operations
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2.NO.CC Counting and Cardinality
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2.NO.CC.1 Count forward from any given number within 1000.
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2.NO.CC.2 Count backward from any given number within 1000.
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2.NO.CC.3 Read and write numbers up to 1000 using standard, word, and expanded forms.
- Spell word names for numbers up to 20 (2-D.1)
- Writing numbers up to 100 in words - convert words to digits (2-D.2)
- Writing numbers up to 100 in words - convert digits to words (2-D.3)
- Writing numbers up to 1,000 in words - convert words to digits (2-D.4)
- Writing numbers up to 1,000 in words - convert digits to words (2-D.5)
- Writing numbers up to 1,000 in words (2-D.6)
- Convert from expanded form - up to hundreds (2-L.14)
- Convert between standard and expanded form (2-L.15)
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2.NO.CC.4 Skip count forward and backward by 2s and 100s and recognize the patterns of skip counts.
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2.NO.NBT Base Ten
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2.NO.NBT.1 Understand that the three digits of a three-digit number represent a composition of some hundreds, some tens, and some ones.
- Place value models - up to hundreds (2-L.2)
- Identify a digit up to the hundreds place (2-L.4)
- Value of a digit - up to hundreds (2-L.6)
- Convert to/from a number - up to hundreds (2-L.11)
- Convert between place values - ones and hundreds (2-L.12)
- Convert between place values - ones, tens, and hundreds (2-L.13)
- Regroup hundreds, tens, and ones - ways to make a number (2-L.16)
- Convert between place values - tens and hundreds (2)
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2.NO.NBT.2 Compare two three-digit numbers using symbols >, <, and =. Justify comparisons based on the value of hundreds, tens, and ones.
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2.NO.NBT.3 Add within 100 using place value strategies and/or the relationship between addition and subtraction.
- Break apart a one-digit number to add (2-M.1)
- Use models to add a two-digit and a one-digit number - without regrouping (2-M.2)
- Use models to add a two-digit and a one-digit number - with regrouping (2-M.3)
- Use number lines to add two-digit numbers (2-M.4)
- Break apart a two-digit number to add - sums to 100 (2-M.5)
- Use compensation to add on a number line - up to two digits (2-M.6)
- Use compensation to add - up to two digits (2-M.7)
- Use models to add two-digit numbers - without regrouping (2-M.8)
- Use models to add two-digit numbers - with regrouping (2-M.9)
- Use place value to add two-digit numbers - without regrouping (2-M.10)
- Use place value to add two-digit numbers - with regrouping (2-M.11)
- Add a two-digit and a one-digit number - without regrouping (2-N.1)
- Add a two-digit and a one-digit number - with regrouping (2-N.2)
- Add a multiple of 10 to a two-digit number (2-N.3)
- Add two-digit numbers without regrouping - sums to 100 (2-N.4)
- Add two-digit numbers with regrouping - sums to 100 (2-N.5)
- Complete the addition sentence - up to two digits (2-N.10)
- Complete the subtraction sentence - up to two digits (2-P.11)
- Relate addition and subtraction sentences - up to two digits (2-Q.5)
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2.NO.NBT.4 Subtract within 100 using place value strategies and/or the relationship between addition and subtraction.
- Complete the addition sentence - up to two digits (2-N.10)
- Break apart a one-digit number to subtract (2-O.1)
- Use models to subtract a one-digit number from a two-digit number - without regrouping (2-O.2)
- Use models to subtract a one-digit number from a two-digit number - with regrouping (2-O.3)
- Break apart a two-digit number to subtract (2-O.5)
- Use compensation to subtract on a number line - up to two digits (2-O.6)
- Use compensation to subtract - up to two digits (2-O.7)
- Use models to subtract two-digit numbers - without regrouping (2-O.9)
- Use models to subtract two-digit numbers - with regrouping (2-O.10)
- Subtract a one-digit number from a two-digit number - without regrouping (2-P.1)
- Subtract a one-digit number from a two-digit number - with regrouping (2-P.2)
- Subtract a multiple of 10 from a two-digit number (2-P.4)
- Subtract two-digit numbers - without regrouping (2-P.5)
- Subtract two-digit numbers - with regrouping (2-P.6)
- Complete the subtraction sentence - up to two digits (2-P.11)
- Relate addition and subtraction sentences - up to two digits (2-Q.5)
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2.NO.NBT.5 Mentally add or subtract 10 or 100 to or from a given number between 100 and 900.
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2.NO.NF Fractions
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2.NO.NF.1 Partition circles and rectangles into two, three, or four equal shares. Describe the shares using the language of halves, thirds, fourths, half of, a third of, and a fourth of.
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2.NO.NF.2 Recognize that identical wholes can be equally divided in different ways.
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2.NO.NF.3 Recognize that partitioning shapes into more equal shares creates smaller shares.
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2.AR Algebraic Reasoning
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2.AR.OA Operations and Algebraic Thinking
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2.AR.OA.1 Automatically add and subtract within 20.
- Add doubles (2-F.2)
- Add doubles - complete the sentence (2-F.3)
- Add near doubles (2-F.4)
- Add by counting on - sums to 20 (2-F.6)
- Make ten to add (2-F.7)
- Add zero (2-F.8)
- Add one-digit numbers - sums to 10 (2-G.1)
- Add one-digit numbers - sums to 20 (2-G.2)
- Sort addition facts - sums to 20 (2-G.3)
- Complete the addition sentence - sums to 20 (2-G.6)
- Which addition sentence is true? - sums to 20 (2-G.8)
- Add three one-digit numbers (2-G.9)
- Subtract doubles (2-H.1)
- Subtract by counting back - up to 20 (2-H.3)
- Use ten to subtract (2-H.4)
- Subtract by counting on - up to 20 (2-H.5)
- Count on and use ten to subtract - up to 20 (2-H.6)
- Subtract zero or all (2-H.7)
- Subtract one-digit numbers - up to 10 (2-I.1)
- Subtract a one-digit number from a two-digit number up to 20 (2-I.2)
- Complete the subtraction sentence - up to 20 (2-I.5)
- Which subtraction sentence is true? - up to 20 (2-I.7)
- Addition and subtraction - up to 20 (2-J.2)
- Ways to make a number using addition and subtraction - up to 20 (2-J.3)
- Which addition or subtraction sentence is true? - up to 20 (2-J.5)
- Add in any order (2-Y.1)
- Ways to make a number using addition - sums to 10 (2)
- Ways to make a number using subtraction - up to 10 (2)
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2.AR.OA.2 Apply the properties of operations to solve addition and subtraction equations within 100 and justify thinking.
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2.AR.OA.3 Solve one- and two-step authentic word problems with addition within 100, including the use of unknowns.
- Addition word problems - sums to 20 (2-G.4)
- Addition sentences for word problems - sums to 20 (2-G.5)
- Addition word problems - three one-digit numbers (2-G.10)
- Addition word problems - four or more one-digit numbers (2-G.12)
- Two-step addition and subtraction word problems - up to 20 (2-K.6)
- Addition word problems - up to two digits (2-N.8)
- Write the addition sentence - up to two digits (2-N.11)
- Addition word problems - three numbers up to two digits each (2-N.16)
- Addition word problems - four numbers up to two digits each (2-N.19)
- Two-step addition and subtraction word problems - up to 100 (2-R.4)
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2.AR.OA.4 Solve one- and two-step authentic word problems with subtraction within 100, including the use of unknowns.
- Subtraction word problems - up to 20 (2-I.3)
- Subtraction sentences for word problems - up to 20 (2-I.4)
- Two-step addition and subtraction word problems - up to 20 (2-K.6)
- Subtraction word problems - up to two digits (2-P.10)
- Write the subtraction sentence - up to two digits (2-P.12)
- Two-step addition and subtraction word problems - up to 100 (2-R.4)
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2.AR.OA.5 Use repeated addition to find the total number of objects arranged in a rectangular array.
- Identify repeated addition for equal groups - sums to 25 (2-X.2)
- Write addition sentences for equal groups - sums to 25 (2-X.3)
- Identify repeated addition for arrays - sums to 25 (2-X.4)
- Write addition sentences for arrays - sums to 25 (2-X.5)
- Solve word problems using repeated addition - sums to 25 (2-X.6)
- Write stories involving repeated addition - sums to 25 (2-X.7)
- Identify repeated addition for arrays - sums to 10 (2)
- Write addition sentences for arrays - sums to 10 (2)
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2.AR.OA.6 Identify a group of objects from 0 to 20 as even or odd by showing even numbers as a sum of two equal parts.
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2.GM Geometry and Measurement
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2.GM.G Geometry
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2.GM.G.1 Identify two-dimensional shapes (parallelograms and quadrilaterals).
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2.GM.G.2 Identify two-dimensional shapes found within three-dimensional shapes.
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2.GM.G.3 Compose geometric shapes having specified geometric attributes, such as a given number of edges, angles, faces, vertices, and/or sides.
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2.GM.M Measurement
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2.GM.M.1 Measure the length of an object using two different standard units of measurement. Describe how the two measurements relate to the size of the units chosen.
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2.GM.M.2 Estimate and measure to determine how much longer one object is than another, expressing the difference with a standard unit of measurement.
- Measure to compare length in inches (2-GG.3)
- Which customary unit of length is appropriate: inches or feet? (2-GG.7)
- Compare lengths: customary units (2-GG.10)
- Measure to compare length in centimeters (2-HH.2)
- Which metric unit of length is appropriate? (2-HH.5)
- Compare lengths: metric units (2-HH.7)
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2.GM.M.3 Tell and write time to the nearest five minutes (including quarter after and quarter to) with a.m. and p.m. using analog and digital clocks.
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2.GM.M.4 Count collections of money (quarters, dimes, nickels, and pennies) relating to counting patterns by 1s, 5s, and 10s up to one dollar.
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2.DPS Data, Probability, and Statistics
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2.DPS.D Data
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2.DPS.D.1 Formulate questions and collect, organize, and represent data with up to four categories using single unit scaled picture and bar graphs.
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2.DPS.D.2 Generate data and create line plots marked in whole-number units.
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2.DPS.D.3 Analyze data and interpret the results to solve one-step comparison problems using information from the graphs.
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