### Related Resources

The various resources listed below are aligned to the same standard, (2NBT05) taken from the CCSM (Common Core Standards For Mathematics) as the Addition and subtraction Worksheet shown above.

*Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction. *

#### Flashcard

#### Game

#### Lesson

#### Quiz

- Addition with making 20 e.g. 18 + 7 = 25
- Addition with making multiples of 10 e.g. 66 + 8 = 74

#### Worksheet

##### Bridging

##### Number bonds

- Number bonds to 20 e.g.8 + ___ = 20
- Number bonds to 30 e.g.26 + ___ = 30
- Number bonds to 40 e.g.12 + ___ = 40
- Number bonds to 50 e.g.17 + ___ = 50
- Number bonds to 100 e.g. 43 + ___ = 100
- Number Bonds To 100 (with blank number lines)

##### Slightly Different

- Adding To Subtract e.g. 45 - 27 = (45+3 = 48) - (27+3=30) = 18

##### To 100

- 2-digit & 1-digit - no regrouping e.g. 34 + 5, 56 - 4
- 2-digit numbers - no regrouping e.g. 42 + 36, 34 + 12
- 2-digit numbers - regrouping e.g. 47 + 16, 78 - 29
- 2-digit - 1-digit - no regrouping e.g. 68 - 5
- 2-digit - 1-digit - regrouping e.g. 65 - 7
- 2-digit - 2 -digit - no regrouping e.g. 86 - 43
- 2-digit - 2-digit - regrouping e.g. 57 - 39