IXL Links - 2nd Grade

2.N Number & Operations

• 2.N.1 Compare and represent whole numbers up to 1,000 with an emphasis on place value and equality.

  • 2.N.1.1 Read, write, discuss, and represent whole numbers up to 1,000. Representations may include numerals, words, pictures, tally marks, number lines and manipulatives.

    • Count forward and backward by fives and tens (2-A.8)

    • Hundreds chart (2-A.12)

    • Number lines - up to 1,000 (2-A.13)

    • Writing numbers up to 100 in words - convert words to digits (2-C.3)

    • Writing numbers up to 100 in words - convert digits to words (2-C.4)

    • Writing numbers up to 1,000 in words - convert words to digits (2-C.5)

    • Writing numbers up to 1,000 in words - convert digits to words (2-C.6)

  • 2.N.1.2 Use knowledge of number relationships to locate the position of a given whole number on an open number line up to 100.

    • Number lines - up to 100 (2-A.11)

    • Number lines - up to 1,000 (2-A.13)

    • Even or odd numbers on number lines (2-A.17)

  • 2.N.1.3 Use place value to describe whole numbers between 10 and 1,000 in terms of hundreds, tens and ones. Know that 100 is 10 tens, and 1,000 is 10 hundreds.

    • Place value models - tens and ones (2-M.1)

    • Place value models - up to hundreds (2-M.2)

    • Place value models - up to thousands (2-M.3)

    • Place value - tens and ones (2-M.5)

    • Place value - up to hundreds (2-M.6)

    • Place value - up to thousands (2-M.7)

    • Regroup tens and ones - ways to make a number (2-M.9)

    • Regroup tens and ones (2-M.10)

  • 2.N.1.4 Find 10 more or 10 less than a given three-digit number. Find 100 more or 100 less than a given three-digit number

    • Ten more or less (1-J.8)

    • Input/output tables - add and subtract by 10 (2-L.7)

    • Input/output tables - add and subtract by 100 (2-L.14)

    • Input/output tables - add and subtract by 10 or 100 (2-L.15)

  • 2.N.1.5 Recognize when to round numbers to the nearest 10 and 100.

    • Estimate to the nearest ten (2-N.1)

    • Round to the nearest ten (2-N.2)

    • Round to the nearest ten or hundred (2-N.3)

  • 2.N.1.6 Use place value to compare and order whole numbers up to 1,000 using comparative language, numbers, and symbols (e.g., 425 > 276, 73 < 107, page 351 comes after page 350, 753 is between 700 and 800).

    • Comparing numbers up to 100 (2-B.1)

    • Comparing numbers up to 1,000 (2-B.2)

    • Put numbers up to 100 in order (2-B.3)

    • Put numbers up to 1,000 in order (2-B.4)

    • Greatest and least - word problems - up to 100 (2-B.5)

    • Greatest and least - word problems - up to 1,000 (2-B.6)

• 2.N.2 Add and subtract one- and two-digit numbers in real-world and mathematical problems.

  • 2.N.2.1 Use the relationship between addition and subtraction to generate basic facts up to 20.

    • Write addition sentences to describe pictures - sums to 10 (2-E.4)

    • Addition with pictures - sums to 20 (2-E.6)

    • Write addition sentences to describe pictures - sums to 20 (2-E.7)

    • Add doubles using models (2-E.12)

    • Add doubles - complete the sentence (2-E.14)

    • Addition word problems - sums to 20 (2-E.15)

    • Addition sentences for word problems - sums to 20 (2-E.16)

    • Complete the addition sentence - sums to 20 (2-E.17)

    • Balance addition equations - sums to 20 (2-E.18)

    • Ways to subtract - up to 10 (2-F.2)

    • Write subtraction sentences - up to 10 (2-F.3)

    • Subtraction with pictures (2-F.5)

    • Write subtraction sentences to describe pictures - up to 18 (2-F.6)

    • Subtraction sentences for word problems - up to 18 (2-F.12)

    • Complete the subtraction sentence - up to 18 (2-F.13)

    • Balance subtraction equations - up to 18 (2-F.14)

    • Related addition facts (2-K.1)

    • Related subtraction facts (2-K.2)

    • Fact families (2-K.3)

    • Add and subtract numbers up to 20 (2-L.1)

    • Addition and subtraction - ways to make a number - up to 20 (2-L.2)

    • Addition and subtraction word problems - up to 20 (2-L.3)

    • Addition and subtraction - balance equations - up to 20 (2-L.4)

    • Addition and subtraction sentences up to 20: which is true? (2-L.5)

  • 2.N.2.2 Demonstrate fluency with basic addition facts and related subtraction facts up to 20.

    • Add one-digit numbers - sums to 10 (2-E.1)

    • Ways to make a number with addition - sums to 10 (2-E.2)

    • Add one-digit numbers (2-E.9)

    • Addition input/output tables - sums to 20 (2-E.10)

    • Add zero (2-E.11)

    • Add doubles (2-E.13)

    • Addition sentences: which is true? (2-E.19)

    • Add three one-digit numbers (2-E.20)

    • Add three one-digit numbers: word problems (2-E.21)

    • Add four or more one-digit numbers (2-E.22)

    • Add four or more one-digit numbers: word problems (2-E.23)

    • Subtract one-digit numbers - up to 10 (2-F.1)

    • Subtract a one-digit number from a two-digit number up to 18 (2-F.8)

    • Subtraction input/output tables - up to 18 (2-F.9)

    • Subtract zero/all (2-F.10)

    • Subtraction word problems - up to 18 (2-F.11)

    • Subtraction sentences: which is true? (2-F.15)

  • 2.N.2.3 Estimate sums and differences up to 100.

    • Estimate sums (2-N.5)

    • Estimate differences (2-N.6)

  • 2.N.2.4 Use strategies and algorithms based on knowledge of place value and equality to add and subtract two-digit numbers

    • Add multiples of 10 (2-G.1)

    • Add a two-digit and a one-digit number - without regrouping (2-G.3)

    • Add a two-digit and a one-digit number - with regrouping (2-G.4)

    • Add two-digit numbers without regrouping - sums to 100 (2-G.5)

    • Add two-digit numbers with regrouping - sums to 100 (2-G.6)

    • Addition input/output tables - up to two digits (2-G.8)

    • Ways to make a number using addition (2-G.9)

    • Complete the addition sentence - up to two digits (2-G.11)

    • Add three numbers up to two digits each (2-G.14)

    • Add four numbers up to two digits each (2-G.16)

    • Subtract multiples of 10 (2-H.1)

    • Subtract a one-digit number from a two-digit number - without regrouping (2-H.3)

    • Subtract a one-digit number from a two-digit number - with regrouping (2-H.4)

    • Subtract two two-digit numbers - without regrouping (2-H.5)

    • Subtract two two-digit numbers - with regrouping (2-H.6)

    • Subtraction input/output tables - up to two digits (2-H.7)

    • Ways to make a number using subtraction (2-H.8)

    • Complete the subtraction sentence - up to two digits (2-H.10)

    • Add and subtract numbers up to 100 (2-L.8)

    • Addition and subtraction - ways to make a number - up to 100 (2-L.9)

    • Addition and subtraction word problems - up to 100 (2-L.10)

  • 2.N.2.5 Solve real-world and mathematical addition and subtraction problems involving whole numbers up to 2 digits.

    • Addition word problems - up to two digits (2-G.10)

    • Add three numbers up to two digits each: word problems (2-G.15)

    • Add four numbers up to two digits each: word problems (2-G.17)

    • Subtraction word problems - up to two digits (2-H.9)

    • Addition and subtraction - balance equations - up to 100 (2-L.12)

    • Which sign (+ or -) makes the number sentence true? (2-L.16)

  • 2.N.2.6 Use concrete models and structured arrangements, such as repeated addition, arrays and ten frames to develop understanding of multiplication.

    • Identify repeated addition in arrays: sums to 10 (2-E.24)

    • Write addition sentences for arrays: sums to 10 (2-E.25)

    • Identify repeated addition in arrays: sums to 25 (2-E.26)

    • Write addition sentences for arrays: sums to 25 (2-E.27)

    • Count equal groups (2-Y.1)

    • Identify multiplication sentences for equal groups (2-Y.2)

    • Write multiplication sentences for equal groups (2-Y.3)

    • Relate addition and multiplication for equal groups (2-Y.4)

    • Write multiplication sentences for arrays (2-Y.5)

• 2.N.3 Explore the foundational ideas of fractions.

  • 2.N.3.1 Identify the parts of a set and area that represent fractions for halves, thirds, and fourths.

    • Equal parts (2-W.1)

    • Fractions of a whole: modeling word problems (2-W.9)

  • 2.N.3.2 Construct equal-sized portions through fair sharing including length, set, and area models for halves, thirds, and fourths.

    • Halves, thirds, and fourths (2-W.5)

• 2.N.4 Determine the value of a set of coins.

  • 2.N.4.1 Determine the value of a collection(s) of coins up to one dollar using the cent symbol.

    • Names and values of common coins (2-P.1)

    • Names and values of all coins (2-P.2)

    • Count money - pennies, nickels, and dimes only (2-P.3)

    • Count money - up to $1 (2-P.4)

    • Exchanging money - with pictures (2-P.7)

    • Comparing groups of coins (2-P.9)

    • Add money - up to $1 (2-P.10)

    • Add money - up to $1: word problems (2-P.11)

    • Subtract money - up to $1 (2-P.12)

    • Subtract money - up to $1: word problems (2-P.13)

    • Add and subtract money - up to $1 (2-P.14)

    • Add and subtract money - up to $1: word problems (2-P.15)

    • Purchases - do you have enough money - up to $1 (2-P.16)

    • Least number of coins (2-P.19)

    • How much more to make a dollar? (2-P.20)

    • Making change (2-P.22)

  • 2.N.4.2 Use a combination of coins to represent a given amount of money up to one dollar

    • Equivalent amounts of money - up to $1 (2-P.6)

    • Exchanging money - with pictures (2-P.7)

    • Comparing groups of coins (2-P.9)

2.A Algebraic Reasoning & Algebra

• 2.A.1 Describe the relationship found in patterns to solve real-world and mathematical problems.

  • 2.A.1.1 Represent, create, describe, complete, and extend growing and shrinking patterns with quantity and numbers in a variety of real-world and mathematical contexts.

    • Repeating patterns (2-D.1)

    • Growing patterns (2-D.2)

    • Find the next shape in a repeating pattern (2-D.3)

    • Find the next row in a growing pattern (2-D.7)

  • 2.A.1.2 Represent and describe repeating patterns involving shapes in a variety of contexts.

    • Complete a repeating pattern (2-D.5)

    • Make a repeating pattern (2-D.6)

• 2.A.2 Use number sentences involving unknowns to represent and solve real-world and mathematical problems.

  • 2.A.2.1 Use objects and number lines to represent number sentences.

    • Addition with pictures - sums to 20 (2-E.6)

    • Write addition sentences to describe pictures - sums to 20 (2-E.7)

    • Subtraction with pictures (2-F.5)

    • Write subtraction sentences to describe pictures - up to 18 (2-F.6)

    • Write addition sentences to describe pictures (2-G.2)

  • 2.A.2.2 Generate real-world situations to represent number sentences and vice versa.

    • Addition sentences for word problems - sums to 20 (2-E.16)

    • Subtraction sentences for word problems - up to 18 (2-F.12)

    • Write the addition sentence - up to two digits (2-G.12)

    • Write the subtraction sentence - up to two digits (2-H.11)

    • Write the addition sentence - up to three digits (2-I.7)

    • Write the subtraction sentence - up to three digits (2-J.7)

  • 2.A.2.3 Apply commutative and identity properties and number sense to find values for unknowns that make number sentences involving addition and subtraction true or false.

    • Solve using properties of addition (3-N.4)

    • Solve using properties of multiplication (3-N.8)

2.GM Geometry & Measurement

• 2.GM.1 Analyze attributes of two-dimensional figures and develop generalizations about their properties.

  • 2.GM.1.1 Recognize trapezoids and hexagons.

    • Name the two-dimensional shape (2-T.1)

    • Identify trapezoids (3-DD.5)

  • 2.GM.1.2 Describe, compare, and classify two-dimensional figures according to their geometric attributes.

    • Name the two-dimensional shape (2-T.1)

    • Select two-dimensional shapes (2-T.2)

    • Count sides and vertices (2-T.3)

    • Compare sides and vertices (2-T.4)

  • 2.GM.1.3 Compose two-dimensional shapes using triangles, squares, hexagons, trapezoids, and rhombi.

  • 2.GM.1.4 Recognize right angles and classify angles as smaller or larger than a right angle.

    • Angles greater than, less than, or equal to a right angle (3-CC.6)

• 2.GM.2 Understand length as a measurable attribute and explore capacity.

  • 2.GM.2.1 Explain the relationship between the size of the unit of measurement and the number of units needed to measure the length of an object.

    • Which customary unit of length is appropriate: inches, feet, or yards? (2-S.4)

    • Which metric unit of length is appropriate? (2-S.9)

  • 2.GM.2.2 Explain the relationship between length and the numbers on a ruler by using a ruler to measure lengths to the nearest whole unit.

    • Measure using an inch ruler (2-S.2)

    • Measure using a centimeter ruler (2-S.8)

  • 2.GM.2.3 Explore how varying shapes and styles of containers can have the same capacity.

• 2.GM.3 Tell time to the quarter hour

  • 2.GM.3.1 Read and write time to the quarter-hour on an analog and digital clock. Distinguish between a.m. and p.m.

    • Match digital clocks and times (2-Q.1)

    • Match analog and digital clocks (2-Q.3)

    • Read clocks and write times: hour and half hour (2-Q.4)

    • Read clocks and write times (2-Q.5)

    • Time words: o'clock, half, quarter (2-Q.6)

    • A.M. or P.M. (2-Q.7)

    • Compare clocks (2-Q.8)

2.D Data & Probability

• 2.D.1 Collect, organize, and interpret data.

  • 2.D.1.1 Explain that the length of a bar in a bar graph or the number of objects in a picture graph represents the number of data points for a given category.

    • Create bar graphs (2-R.8)

    • Create pictographs II (2-R.14)

  • 2.D.1.2 Organize a collection of data with up to four categories using pictographs and bar graphs with intervals of 1s, 2s, 5s or 10s.

    • Create bar graphs (2-R.8)

    • Create pictographs II (2-R.14)

  • 2.D.1.3 Write and solve one-step word problems involving addition or subtraction using data represented within pictographs and bar graphs with intervals of one.

    • Interpret bar graphs II (2-R.6)

    • Interpret pictographs II (2-R.12)

  • 2.D.1.4 Draw conclusions and make predictions from information in a graph

    • Interpret tally charts (2-R.2)

    • Interpret bar graphs II (2-R.6)

    • Interpret line plots (2-R.9)

    • Interpret pictographs II (2-R.12)

    • Interpret line graphs (2-R.15)