Chapter 1-4 (Whole numbers, Fractions, Decimals, and Checking accounts)

Decimal point

A dot written in a decimal number that separates the whole number part from the fractional part of the number

Rounding all the way

A process of rounding numbers to the first (i.e. the left most) digit. Used to prework a problem to an estimated answer. For example, 2,865 rounded all the way is 3,000.

Decimal number system

A system using the 10 Hindu-Arabic symbols 0 through 9. In this place value system, the position to the left or right of the decimal point affects its value.

Whole numbers

Any numbers 0 or greater that do not contain a decimal or fraction. Whole numbers are found to the left of the decimal point. Also known as an integer. For example 6, 25, and 300 are whole numbers.

Addends

Any of a set of numbers being added in an addition problem. For example, 4 and 1 are the addends of the addition problem 4 + 1 = 5.

Minuend

I'm subtraction, the original number. The amount from which another number, the subtrahend, is subtracted. For example, 5 is the minuend of the subtraction problem 5 - 1 = 4.

Remainder

I'm uneven division, the amount left over after the division is completed. For example, 2 is the remainder of 22 / 5 = 4, R 2.

Dividend

In division, the quantity being divided. For example, 20 is the dividend of 20 / 5 = 4.

Multiplicand

In multiplication, the number being multiplied. For example, 5 is the multiplicand of 5 x 4 = 20.

Rounded numbers

Numbers that are approximations or estimates of exact numbers. For example, 50 is the rounded number of the exact number 49.

Subtrahend

The amount being subtracted or taken from the minuend. For example, 1 is the subtrahend of 5 - 1 = 4.

Quotient

The answer or result of division. The number 4 is the quotient of 20 / 5 = 4.

Product

The answer or result of multiplication. the number 20 is the product of 5 x 4 = 20.

Multiplication

The combination of two numbers in which the number of times one is represented is determined by the value of the other.

Division line

The horizontal or slanted line seperastin

Addition

The mathematical process of computing sets of numbers to find their sum, or total.

Division

The mathematical process of determining how many times one number is contained within another number.

Subtraction

The mathematical process of taking away, or deducting, an amount from a given number

Multiplier

The number by which the multiplicand is multiplied. For example, 4 is the multiplier of 5 x 4 = 20.

Difference

The number obtained when one number is subtracted from another. The answer or result of subtraction. For example, 4 is the difference of 5 - 1 = 4.

Denominator

The number on the bottom of the division lineof a fraction. It represents the divisor in the division. In the fraction 1/4, 4 is the denominator.

Numerator

The number on top of the division line of a fraction. It represents the dividend in the division.In the fraction 1/4, 1 is the numerator

Divisor

The quantity by which another quantity, the dividend, is being divided. The number doing the dividing. For example, 5 is the divisor of 20 / 5 = 4.

Sum, total, or amount

The result or answer of an addition problem. The number 5 is the sum, or total, of 4 + 1 = 5.

Plus sign

The symbol "+" representing addition.

Minus sign

The symbol "-" representing subtraction

Division sign

The symbol "/" representing division.

Estimate

To calculate approximately the amount or value of something. The number 50 is an estimate of 49.

Times sign

the symbole "x" representing multiplication. Also represented by a raised dot "*' or parentheses "()".