A
The set of counting (natural) numbers and zero {0, 1, 2, 3, ..., n}
Pairs of numbers that are easy to add, subtract, multiply, or divide mentally.
COMPATIBLE NUMBERS
The action of calculating the set of positive numbers that begins at one and increases by increments of one each time {1, 2, 3, ..., n}
COUNTING NATURAL NUMBERS
The approximation of a number, calculation, quantity, or measurement.
ESTIMATION
The ability to perform mathematical problems accurately and quickly.
MATH FLUENCY
The name given to the result of multiplying a set of numbers together.
PRODUCT
The process of approximating a number by using fewer significant figures.
ROUNDING
It is the process of reformulating an addition, subtraction, multiplication, or division problem to one that can be computed more easily mentally.
COMPENSATION
It is a rectangular model used to show numerical relationships.
STRIP DIAGRAM
The name given to a number which is the result of division.
QUOTIENT
The number in a division problem that is used to divide into another number.
DIVISOR
A method for estimating a number in which the first digit of a number is unchanged and all remaining digits are changed to zero.
FRONT-END METHOD
The number in a division problem that is to be divided by another number.
DIVIDEND
The mathematical ability to reason, apply, understand, compute, and engage in meaningful mathematics.
PROFICIENCY
A number multiplied by another number to find a product
FACTOR