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Haris and allan math presentation
- 1. Order of Operations We use BDMAS because all of the different countries in the world must have a standardized system for completing large equations. BDMAS stands for: Brackets Division Multiplication Addition Subtraction
- 2. Brackets The first step in BDMAS are Brackets. Brackets in math look like this (). They go around a single equation or multiple equations. The reason of brackets are to change the answer. They work because when you put them around an equation it will change when it is answered so it will affect the other equations. ex. 2+3x4=14 (2+3)x4=20 No brackets. With brackets.
- 3. Multiplication/Division The second step in BDMAS is multiplication and division. To tell which operation (x or 歎) you do first is to look and see which one is in front of the others and that equation is what you do. We do multiplication and division as you would normally on a single equation. They look like this x 歎. ex. 6x4歎4=6 6x4歎2=12
- 4. Addition/subtraction The third step in BDMAS is addition and subtraction. To tell which operation (+ or -) you do first is to look and see which one is in front of the others and that equation is what you do. We do addition and subtraction as you would normally on a single equation. They look like this + -. ex. 10-6+3=7 10-6+3=1
- 5. Examples of BDMAS BDMAS 8歎2x6-7+8=25 9-8+7x6歎7=7 5-3+9歎3x4=14
- 6. Thanks for watching By: Allan and Haris