Y2T3 Unit 9 Ordering, addition and subtraction and 'real life' problems

Date of issue: May. 2004

What is it?

Objectives:

Understand that subtraction is the inverse of addition.
Add/subtract 9 or 11: add/subtract 10 and adjust by 1. Begin to add/subtract 19 or 21: add/subtract 20 and adjust by 1.
Use known number facts and place value to add/subtract mentally.
Bridge through 10 or 20, then adjust.
Explain how a problem was solved orally and, where appropriate, in writing.

Note: The Word file is the Unit Plan only. The PDF file contains the Unit Plan and its associated resources.