Subject
Grade
Concept/Content
addition and subtraction to 10 000
Elaboration
- using flexible computation strategies, involving taking apart (e.g., decomposing using friendly numbers and compensating) and combining numbers in a variety of ways, regrouping
- estimating sums and differences to 10 000
- using addition and subtraction in real-life contexts and problem-based situations
- whole-class number talks
keywords
addition and subtraction