Number sense is defined as an intuitive feel for numbers and a common sense approach to using them. It is a comfort with what numbers represent, coming from investigating their characteristics and using them in diverse situations. It involves an understanding of how different types of numbers, such as fractions and decimals, are related to each other, and how they can best be used to describe a particular situation.
Number sense is an attribute of all successful users of mathematics.
Develop an understanding of place value concepts and numeration in relationship to counting and grouping. See patterns in number sequences, and use pattern-based thinking to understand extensions of the number system. Develop a sense of the magnitudes of whole numbers, commonly used fractions, and decimals. Understand the various uses of numbers including counting, measuring, labeling, and indicating location. Count and perform simple computations with money.