## Related Resources

The various resources listed below are aligned to the same standard, (2NBT06) taken from the CCSM (Common Core Standards For Mathematics) as the Addition and subtraction Worksheet shown above.

*Add up to four two-digit numbers using strategies based on place value and properties of operations.*

### Worksheet

#### Slightly Different

- Adding 3 Numbers (in easiest order) e.g. 27 + 13 + 15

#### Three or more

- Three 2-digit numbers e.g. 35 + 14 + 26
- Four 1-digit numbers e.g. 3 + 4 + 8 + 2

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:

*Use place value understanding and properties of operations to add and subtract*

- Help with Pre-Algebra: Simple Equations (From Lesson)
- Number bonds to 20 e.g.8 + ___ = 20 (From Worksheet)
- Number bonds to 30 e.g.26 + ___ = 30 (From Worksheet)
- Number bonds to 40 e.g.12 + ___ = 40 (From Worksheet)
- Number bonds to 50 e.g.17 + ___ = 50 (From Worksheet)
- Number bonds to 100 e.g. 43 + ___ = 100 (From Worksheet)
- Making (Bridging) Multiples of 10 e.g. 17 + 5, 78 + 7 (From Worksheet)
- Adding To Subtract e.g. 45 – 27 = (45+3 = 48) – (27+3=30) = 18 (From Worksheet)
- Number Bonds To 100 (with blank number lines) (From Worksheet)
- Adding & Subtracting with 3 Numbers (e.g. 5 + 6 + 3 = 14, 12 – 3 + 7 = 16) (From Worksheet)
- Addition & Subtraction: 1 of 3 (within 1000) (From Worksheet)
- Addition & Subtraction: 2 of 3 (within 1000) (From Worksheet)
- Addition & Subtraction: 3 of 3 (within 1000) (From Worksheet)
- Subtracting with Regrouping Ten (includes base ten block visuals) (From Worksheet)
- Subtraction with regrouping (with place value blocks) (From Worksheet)
- 2-digit & 1-digit – no regrouping e.g. 34 + 5, 56 – 4 (From Worksheet)
- 2-digit numbers – no regrouping e.g. 42 + 36, 34 + 12 (From Worksheet)
- 2-digit numbers – regrouping e.g. 47 + 16, 78 – 29 (From Worksheet)
- 2-digit + 1-digit – no regrouping e.g. 34 + 5 (From Worksheet)
- 2-digit + 2 -digit – no regrouping e.g. 42 + 36 (From Worksheet)
- 2-digit + 2-digit – regrouping e.g. 47 + 16 (From Worksheet)
- 2-digit – 1-digit – no regrouping e.g. 68 – 5 (From Worksheet)
- 2-digit – 1-digit – regrouping e.g. 65 – 7 (From Worksheet)
- 2-digit – 2 -digit – no regrouping e.g. 86 – 43 (From Worksheet)
- 2-digit – 2-digit – regrouping e.g. 57 – 39 (From Worksheet)
- Number Bonds For Multiples of 10 (From Game)