- Definition
Compatible numbers are numbers that are easy to work with in your head, like rounding 19 to 20 to quickly estimate an answer.
compatible numbers is a term used in Ontario’s Kindergarten to Grade 8 curriculum.
The descriptions on this page are SmartStudy’s own original, plain-language writing — not the Ministry’s wording. They are aligned to the Ontario Curriculum, © King’s Printer for Ontario. For the Ministry’s official wording, see the source link below. SmartStudy is an independent service and is not affiliated with, endorsed by, or sponsored by the Government of Ontario or the Ministry of Education. Ontario Curriculum and Resources ↗
