Friends of… 1 to 10 Addition Poster

Common Core State Standards alignment

• CCSS.MATH.CONTENT.K.OA.A.1
  In KindergartenStandards for Mathematical PracticeOperations & Algebraic ThinkingUnderstand addition, and understand subtraction

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

• CCSS.MATH.CONTENT.K.OA.A.2
  In KindergartenStandards for Mathematical PracticeOperations & Algebraic ThinkingUnderstand addition, and understand subtraction

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

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

  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)....

• CCSS.MATH.CONTENT.K.OA.A.4
  In KindergartenStandards for Mathematical PracticeOperations & Algebraic ThinkingUnderstand addition, and understand subtraction

  For any number from 1 to 9, find the number that makes 10 when added to the given number, e.g., by using objects or drawings, and record the answer with a drawing or equation....

• CCSS.MATH.CONTENT.K.OA.A.5
  In KindergartenStandards for Mathematical PracticeOperations & Algebraic ThinkingUnderstand addition, and understand subtraction

  Fluently add and subtract within 5....

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

  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 ...

• CCSS.MATH.CONTENT.1.NBT.C.4
  In Grade 1Standards for Mathematical PracticeNumber & Operations in Base TenUse place value understanding and properties of operations to add and subtract

  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...

• CCSS.MATH.CONTENT.2.OA.B.2
  In Grade 2Standards for Mathematical PracticeOperations & Algebraic ThinkingAdd and subtract within 20

  Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers....