Work with numbers; operations with numbers and relationships between numbers US

People credited with this unit standard are able to:
Recognise, order, describe and compare numbers
Perform calculations to solve realistic and abstract problems
Use different techniques and strategies to calculate efficiently and accurately
Solve problems in contexts (social, economic, environmental, human rights)
Describe and illustrate the development of number systems in different cultures e.g. Babylonian (base 60) or Mayan (base 20)