Rainbow Numbers Worksheet

  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.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.OA.A.4

  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.

  In KindergartenStandards for Mathematical PracticeOperations & Algebraic ThinkingUnderstand addition, and understand subtraction
• 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.2.OA.B.2

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

  In Grade 2Standards for Mathematical PracticeOperations & Algebraic ThinkingAdd and subtract within 20