BODMAS rule in math is a rule that helps to solve the operation correctly. When the operations have brackets, exponents, multiplication, division, addition, and subtraction it is important to know which operation should be executed first. This helps to find the right solution.
Meaning of BODMAS
B – Bracket
O – Orders (power/exponent)
D – Division
M – Multiplication
A – Addition
S – Subtraction
The BODMAS rule states that mathematical expressions with multiple operations need to be solved from left to right in the order of BODMAS. Division and Multiplication order can be interchanged depending on which comes first in the expression, similarly with Addition and Subtraction.
Examples of BODMAS rule in maths
Question 1: 3 + 8•4
Going from left to right, we have operations as: Addition, Multiplication
According to the BODMAS rule first comes multiplication and then Addition.
therefore, by solving 8.4 first we get
3 + 8.4 = 3 + 32 = 35
Note: If you solve addition first 3 + 8.4 will become 11+ 4 = 15 which is wrong
Question 2: 4(3-1)2
Going left to right operations are: Multiplication, Brackets, Subtraction, Order/Exponents/Powers
Rearranging the sequence: Brackets, Orders, Multiplication, Subtraction
Solving bracket ,
4(3-1)2 = 4(2)2 = 4.22
Here Subtraction was part of brackets so we solved it first. Solving powers,
4.22 = 4.4
Solving multiplication,
4.4 = 16
Question 3: 8 • 2 + 3 • 6
Operation order from left to right is multiplication, addition, multiplication
Order to follow as per rule: Multiplication, multiplication, addition
Solving first multiplication while going from left to right,
8.2 + 3.6 = 16 + 3.6
Solving next multiplication,
16 + 3.6 = 16 + 18
Solving addition,
16 + 18 = 34
Question 4: 9 ÷ 3 + 2 • 5
Operation order from left to right: Division, Addition, Multiplication
According to the rule, the sequence is: Division, Multiplication, Addition
therefore, 9 ÷ 3 + 2 • 5 = 3 + 2 • 5 = 3 + 10 = 13
Question 5: 6 + 32 ÷ 42
Operations that we have Addition, Division, Power
According to BODMAS, sequence is Power, Division, Additionhttps://hackonmath.com/wp-content/uploads/2022/11/BODMAS-PEDMAS-hackonmath.pdf
therefore, 6 + 32 ÷ 42 = 6 + 32 ÷ 16 = 6 + 2 = 8