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Double Facts within 10 - 1st Grade Math

Double Facts are additions, in which a number is added to itself. For example 1 + 1, 2 + 2 and so on. Internalizing double facts are helpful building blocks in developing fluency in adding single digit numbers. Double Facts within 10 Worksheet focuses on practicing double facts for numbers up to 5.

Common Core Alignment

1.OA.6Add 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).