BODMAS Rule
BODMAS Rule
BODMAS is an acronym and it stands for Bracket, Of, Division, Multiplication, Addition and Subtraction.
This explains the order of operations to solve an expression. According to Bodmas rule, if an expression contains brackets ((), {}, []) we have to first solve/simplify the bracket followed by of (powers and roots etc.), then division, multiplication, addition and subtraction from left to right.
Example :
7 + (6 × 52 + 3) = 7 + (6 × 25 + 3)
7 + (150 + 3)
7 + (153)
7 + 153
Ans: 160.
Code: ABC FIR GJ.
A : America .
B : Britain.
C : Canada.
F : France.
I : Italy.
R : Russia.
G : Germany.
J : Japan.
...
The quickest way to calculate percentages is to multiply numbers first and handle two decimal places later.
For example, 20% of 70 is 20 x 70 = 1400, so the answer is 14. .
70% of 20 is also 14.
To calculate the percentage of 72 or 29, then round up and down to the nearest multiple (70 and 30 respectively) to get a quick approx result.
...
Code: MBBS PAIN.
M: Malideep.
B: Bhutan.
B: Bengladesh.
S: Srilanka.
P: Pakistan.
A: Afganistan.
I: India.
N: Nepal.
...
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