In mathematics, regrouping is the reorganization of numbers from one column to another to perform addition and subtraction equations. Typically, regrouping is referred to as “carrying” and “borrowing” a number. More »

According to, the term "range" in math is usually used to describe the difference between the highest and lowest values of a data set. However, range can also mean all the output values of a function. More » Math Arithmetic

In math terms, the "range" is the difference between the maximum and minimum values of a given data set. It is a calculation that measures the spread of a data set. However, range can also mean all the output values of a... More »

Teachers use base-10 blocks to represent large numbers in addition, subtraction, multiplication and division problems. Students count and move the blocks around to figure out the answers. More »

Second grade mathematics covers mathematical topics such as fractions, addition and subtraction of two-digit numbers, and collection and presentation of data. Students are also introduced to numbers up to 1,000 and their... More » Education K-12 K-12 Curriculum

Students in first grade initially learn about basic math concepts, such as addition and subtraction. They also are introduced to learning how to tell time and count money. Most math problems that students in first grade ... More » Math Arithmetic

In mathematics, an array is a set of numbers or objects placed in rows or columns. Arrays are often used to represent multiplication or division. More »