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## Related Resources

The various resources listed below are aligned to the same standard, (2OA02) taken from the CCSM (Common Core Standards For Mathematics) as the Addition and subtraction Worksheet 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

- Addition &/ or subtraction game (numbers to 9 and to 19)

### 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 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