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Math Standard 1.OA.C.5

  • Major Standards
  • Supporting Standards
  • Additional Standards

Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).

Part of Major Cluster 1.OA.C
View 24 lessons for this standard
View 71 activities for this standard
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Prerequisites

Kindergarten

K.CC.B.4.C

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

Upcoming Standards

1st Grade

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 - 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).

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