## Related Resources

The various resources listed below are aligned to the same standard, (1OA07) taken from the CCSM (Common Core Standards For Mathematics) as the Addition and subtraction Worksheet shown above.

*Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false. For example, which of the following equations are true and which are false? 6 = 6, 7 = 8 – 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2.*

### Worksheet

#### To 10

- 1-digit numbers e.g. 6 + 3, 9 – 4
- Sums to 9 (1 of 3) e.g. 6 + 3 (both horizontal and vertical addition)
- Numbers to 9 (1 of 3) e.g. 8 – 4 (both horizontal and vertical formats)
- Sums to 9 (2 of 3) e.g. 6 + 3 (both horizontal and vertical addition)
- Numbers to 9 (2 of 3) e.g. 8 – 4 (both horizontal and vertical formats)
- Sums to 9 (3 of 3) e.g. 6 + 3

#### To 20

Similar to the above listing, the resources below are aligned to related standards in the Common Core For Mathematics that together support the following learning outcome:

*Work with addition and subtraction equations*

- Missing Numbers With Adding & Subtracting to 10 #1 e.g. 6 – __ = 4, __ + 3 = 7 (From Worksheet)
- Missing Numbers With Adding & Subtracting to 10 #2 (From Worksheet)
- Missing Numbers With Adding & Subtracting to 20 #1 (From Worksheet)
- Missing Numbers With Adding & Subtracting to 20 #2 e.g. 12 – __ = 7, __ + 9 = 17 (From Worksheet)
- Addition/ Subtraction Worksheet Generator (Cuisenaire Rod-like) (From Worksheet)
- Addition/ Subtraction Worksheet Generator (From Worksheet)