Place Value and Reversibility

Today for math we have been learning about reversibility and place value we used addistion and subtraction.

Place value: When you are using this stratgy you are seperating the number's into 10's and 1's. We do this to make it much easier to add.

Reversibility: When you are using this stratagy you reverse your subtraction into addition.(watch my video below to see an example) (My partner was Alekisio he also did some of the work)