Number Chart – 1-50

  Common Core Curriculum alignment

• CCSS.MATH.CONTENT.K.OA.A.2

  Solve addition and subtraction word problems, and add and subtract within 10, e.g., by using objects or drawings to represent the problem.

  In KindergartenStandards for Mathematical PracticeOperations & Algebraic ThinkingUnderstand addition, and understand subtraction
• CCSS.MATH.CONTENT.1.NBT.C.4

  Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship b...

  In Grade 1Standards for Mathematical PracticeNumber & Operations in Base TenUse place value understanding and properties of operations to add and subtract
• CCSS.MATH.CONTENT.1.NBT.B.2.B

  The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.

  In Grade 1Standards for Mathematical PracticeNumber & Operations in Base TenUnderstand place valueCCSS.MATH.CONTENT.1.NBT.B.2
• CCSS.MATH.CONTENT.1.NBT.B.2.A

  10 can be thought of as a bundle of ten ones — called a "ten."

  In Grade 1Standards for Mathematical PracticeNumber & Operations in Base TenUnderstand place valueCCSS.MATH.CONTENT.1.NBT.B.2
• CCSS.MATH.CONTENT.1.OA.C.6

  Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - ...

  In Grade 1Standards for Mathematical PracticeOperations & Algebraic ThinkingAdd and subtract within 20
• CCSS.MATH.CONTENT.1.OA.B.4

  Understand subtraction as an unknown-addend problem. For example, subtract 10 - 8 by finding the number that makes 10 when added to 8.

  In Grade 1Standards for Mathematical PracticeOperations & Algebraic ThinkingUnderstand and apply properties of operations and the relationship between addition and subtraction
• CCSS.MATH.CONTENT.1.OA.B.3

  Apply properties of operations as strategies to add and subtract.2 Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 ...

  In Grade 1Standards for Mathematical PracticeOperations & Algebraic ThinkingUnderstand and apply properties of operations and the relationship between addition and subtraction
• CCSS.MATH.CONTENT.1.OA.A.1

  Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol...

  In Grade 1Standards for Mathematical PracticeOperations & Algebraic ThinkingRepresent and solve problems involving addition and subtraction
• CCSS.MATH.CONTENT.K.OA.A.3

  Decompose numbers less than or equal to 10 into pairs in more than one way, e.g., by using objects or drawings, and record each decomposition by a drawing or equation (e.g., 5 = 2 + 3 and 5 = 4 + 1).

  In KindergartenStandards for Mathematical PracticeOperations & Algebraic ThinkingUnderstand addition, and understand subtraction
• CCSS.MATH.CONTENT.K.CC.A.3

  Write numbers from 0 to 20. Represent a number of objects with a written numeral 0-20 (with 0 representing a count of no objects).

  In KindergartenStandards for Mathematical PracticeCounting & CardinalityKnow number names and the count sequence
• CCSS.MATH.CONTENT.K.OA.A.1

  Represent addition and subtraction with objects, fingers, mental images, drawings1, sounds (e.g., claps), acting out situations, verbal explanations, expressions, or equations.

  In KindergartenStandards for Mathematical PracticeOperations & Algebraic ThinkingUnderstand addition, and understand subtraction
• CCSS.MATH.CONTENT.K.CC.C.7

  Compare two numbers between 1 and 10 presented as written numerals.

  In KindergartenStandards for Mathematical PracticeCompare numbers
• CCSS.MATH.CONTENT.K.CC.C.6

  Identify whether the number of objects in one group is greater than, less than, or equal to the number of objects in another group, e.g., by using matching and counting strategies.

  In KindergartenStandards for Mathematical PracticeCompare numbers
• CCSS.MATH.CONTENT.K.CC.B.4.C

  Understand that each successive number name refers to a quantity that is one larger.

  In KindergartenStandards for Mathematical PracticeCount to tell the number of objectsCCSS.MATH.CONTENT.K.CC.B.4
• CCSS.MATH.CONTENT.K.CC.B.4.B

  Understand that the last number name said tells the number of objects counted. The number of objects is the same regardless of their arrangement or the order in which they were counted.

  In KindergartenStandards for Mathematical PracticeCount to tell the number of objectsCCSS.MATH.CONTENT.K.CC.B.4
• CCSS.MATH.CONTENT.K.CC.B.4.A

  When counting objects, say the number names in the standard order, pairing each object with one and only one number name and each number name with one and only one object.

  In KindergartenStandards for Mathematical PracticeCount to tell the number of objectsCCSS.MATH.CONTENT.K.CC.B.4
• CCSS.MATH.CONTENT.K.CC.B.4

  Understand the relationship between numbers and quantities; connect counting to cardinality.

  In KindergartenStandards for Mathematical PracticeCount to tell the number of objects