MYTUTOR SUBJECT ANSWERS

367 views

13 - 3 × 4+2 Simple question that lots of people get wrong

Have you heard of the BODMAS / BIDMAS rule? 

This rule changes your answer from 42 to 3 instead. that is because this rule says you need to follow a specific order when calculating. It seems easy but is quite easy to forget since we all want to start with the first number. 

here the BODMAS stands for Brackets, Of/operations, multiplication, addition,Subtraction. if it's BIDMAS = same but I stands for indices. 

So , 

13 - 3 × 4 + 2 

=13 - 12 + 2 (multiply first)

=13 - 10 (add , don't forget its -12 +2)

= 3 (lastly we are subtracting)

Shanju R. GCSE Maths tutor

11 months ago

Answered by Shanju, a GCSE Maths tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

442 SUBJECT SPECIALISTS

£18 /hr

Elizabeth M.

Degree: History and German (Bachelors) - Oxford, Somerville College University

Subjects offered: Maths, History+ 3 more

Maths
History
German
Extended Project Qualification
English Literature

“My name is Lizzie and I am currently an Oxford undergraduate studying History and German. I love my subject because it is a combination of my three favourite A-level subjects: History, German and English Literature. The way that langu...”

MyTutor guarantee

£18 /hr

Matilda P.

Degree: Earth Sciences (Bachelors) - Durham University

Subjects offered: Maths

Maths

“I am currently a 2nd year Earth Science student at Durham University. I have a real passion for science, especially maths as it is fundamental to the study of science and an invaluable tool. I know maths can be daunting for some, so I ...”

MyTutor guarantee

£18 /hr

Devna P.

Degree: Chemistry (Bachelors) - Warwick University

Subjects offered: Maths, Extended Project Qualification+ 1 more

Maths
Extended Project Qualification
Biology

“Hi! My name is Devna and I am a first year Chemistry student. My interests and skills lie within science and maths, and I also enjoy teaching. I am friendly, patient and always happy to help. I have mentored lower school students, hel...”

MyTutor guarantee

About the author

£18 /hr

Shanju R.

Degree: Medicine (Bachelors) - Liverpool University

Subjects offered: Maths

Maths

“Top tutor from the renowned Russell university group, ready to help you improve your grades.”

MyTutor guarantee

You may also like...

Other GCSE Maths questions

Solve 5x - 2= 3x + 7

Solve the simultaneous equations '2X+Y=7' and '3X-Y=8'

Surd Calculations?

How to factorise simple quadratic equations?

View GCSE Maths tutors

Cookies:

We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok