Common Core StandardsAddition Facts |
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|---|---|
| Grade: | 1st Grade |
| Standard: | CC.2.2.1.A.1 |
| Description: | Represent and solve problems involving addition and subtraction within 20. |
| Standard: | MA.1.NSO.2.1 |
| Description: | Recall addition facts with sums to 10 and related subtraction facts with automaticity. |
| Standard: | 1.OA.C.5 |
| Description: | Relate counting to addition and subtraction (e.g., by counting on 2 to add 2). |
| Standard: | 1.OA.C.6 |
| Description: | 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). |
| Standard: | MA.1.NSO.2.2 |
| Description: | Add two whole numbers with sums from 0 to 20, and subtract using related facts with procedural reliability. |
| Standard: | 1.3.D |
| Description: | apply basic fact strategies to add and subtract within 20, including making 10 and decomposing a number leading to a 10; |
