Demonstrate an understanding of and use the numbering system US

Persons credited with this unit standard are able to:
Count and/or estimate a number of items and an amount of money and record the number or amount orally and in writing.
Demonstrate understanding of and use the continuous, recurring, patterned nature of the whole number system to generate, order and compare numbers, and identify and complete simple number and visual patterns.
Work with fractions and demonstrate under standing of the size, concept and use of fractions and the link between fractions, decimals and percentages.
Demonstrate understanding of and use mathematical language, symbols and notation to represent and communicate mathematical relations, concepts and generalizations.
Explain the origin and logic of, and use an alternative means of counting and recording quantity.