# Math Word of the Day - Week of October 11

Oct 11, 2020 | Mesa North

Math Word of the Day comes from the Math Dictionary written by Mathnasium.

### Axiomatic System

Sunday, October 11

A system which includes self-evident truths; truths without proofs and from which further statements, or theorems, can be derived.

### Backward

Monday, October 12

Directed or facing the rear.

Done in a manner or an order that is opposite to a previous occurrence.

### Base

Tuesday, October 13

The side or face of a geometric figure to which an altitude is drawn.

The number that is raised to a power (an exponent).

The number that is raised to a power to generate the whole numbers of a number system. The base of the decimal system is 10; the base of the binary system is 2.

### Between

Wednesday, October 14

In an intermediate space, position, or time.

### Benchmark Numbers

Thursday, October 15

Numbers that are used to help make calculations and estimates.

Important benchmark numbers include 0, 1/10, 1/2, 1, 10, 12, and 100.

### Binary

Friday, October 16

A system of numerical notation that has 2 rather than 10 as a base.

### Binary Operation

Saturday, October 17

An operation that combines two objects of one type to form another object of the same type.

In a binary arithmetic operation, a starting number (the operand) is acted on by an operation (+, -, X, ÷) and a second number (the operator), producing a result.

We can say that a binary operation transforms one number into another by means of a given operation.

Operand [+, -, X, ÷] Operator = Result