# Mathematics for Technology I (Math 1131) Durham College, Mathematics
Free • 0 lessons
• 0 quizzes
• 10 week duration
• ##### Numerical Computation

Here you'll be introduced to the bare basics of mathematics. Topics include commonly used words and phrases, symbols, and how to follow the order of operations.

• ##### Measurements

An introduction to numerical computation. Emphasis is placed on scientific and engineering notation, the rule of significant figures, and converting between SI and Imperial units.

• ##### Trigonometry with Right Triangles

Here we focus on right angle triangles within quadrant I of an x-y plane. None of the angles we evaluate here are greater than 90°. A unit on trigonometry with oblique triangles is covered later.

• ##### Trigonometry with Oblique Triangles

This unit is a continuation of trigonometry with right triangles except we'll extend our understanding to deal with angles *greater* than 90°. Resolving and combining vectors will be covered at the end of this unit.

• ##### Geometry

This unit focuses on analyzing and understand the characteristics of various shapes, both 2D and 3D.

## Mathematics for Technology I (Math 1131)

### Order of Operations

To ensure that arithmetic calculations are performed consistently, we must follow the order of operations.

If an arithmetic expression contains brackets, exponents, multiplication, division, addition, and subtraction, we use the following procedure:

1. Perform all operations inside a bracket first (the operations inside the bracket must be performed in proper order).
• ( ) are called parentheses
• [ ] are called brackets
• { } are called braces
• If a set of brackets are within another, these different bracket styles maintain the order in which the content within should be evaluated first, i.e. {4 + [7 – (3 + 2)]}.
2. Perform exponents.
3. Perform multiplication and division in order as they appear from left to right.
4. Perform addition and subtraction in order as they appear from left to right.

Several examples are explained below: