koa3 Worksheets
Operations and Algebraic Thinking
Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from.
3Decompose numbers less than or equal to 10 into pairs in more than one way, e.g., by using objects or drawings, and record each decomposition by a drawing or equation (e.g., 5 = 2 + 3 and 5 = 4 + 1).
koa3
koa3

- Practice figuring out which addition expressions equal a given number
- Learn that more than one addition problem can have the same answer
- Check basic addition facts by deciding if each expression matches the target number