## Related Resources

The resources listed below are aligned to the same standard, (2OA02) re: Common Core Standards For Mathematics as the Addition and subtraction game shown above.

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

### Chart

- Printable Subtraction Table up to 19 – 9

### Flashcard

- Sums to 12 e.g. 8 + 4
- Sums to 18 e.g. 9 + 9
- 1 + 1 to 12 + 12 (Drop-down option giving up to 144 cards)
- Numbers to 12 e.g. 12 – 4
- Numbers to 18 e.g. 17 – 9
- Addition – Sums to 19
- Subtraction – Numbers to 19

### Game

#### Build The Answer Games

### Table

#### Addition/ Subtraction Chart

- Printable Addition Table e.g. 0 + 0 to 10 + 10

### Worksheet

#### Bridging

- Addition with Making (Bridging) 10 & Cuisenaire Rods e.g. 7 + 6 = 7 + 3 + 3 = 10 + 3 = 13

#### To 20

- Numbers to 18 e.g. 9 + 9, 18 – 6
- Numbers to 12 e.g. 11 – 6
- Numbers to 19 (3 of 3) e.g. 17 – 8
- Sums to 19 (1 of 3) e.g. 12 + 4 (both horizontal and vertical addition & no “bridging 10”)
- Numbers to 19 (1 of 3) e.g. 18 – 5 (both horizontal and vertical formats)
- Sums to 19 (2 of 3) e.g. 9 + 8 (both horizontal and vertical addition)
- Numbers to 19 (2 of 3) e.g. 14 – 8 (both horizontal and vertical formats)
- Sums to 19 (3 of 3) e.g. 9 + 9

#### Worksheet Generator

- Customizable Addition Worksheet Generator
- Addition & Subtraction Worksheets
- Customizable Subtraction Worksheet Generator

This resource is available for re-use under a Creative Commons Attribution 4.0 International License. More details and source files here