Addition and Subtraction
addition
addition
Use the strategy that is best for you!
Use the strategy that is best for you!
- Base Ten Blocks
- Regrouping
- Decomposing
- Number Line
Addition Properties
Addition Properties
Commutative: the order does not matter
Associative: add the number in the ( ) first
Identity: a number + 0 shows its true identity
Subtraction
Subtraction