MYTUTOR SUBJECT ANSWERS

269 views

How do I add decimal numbers?

Adding decimal numbers is done exactly the same as normal numbers: the column method.

When you have 2 decimal numbers to add together the most important thing is to line up the decimal points (dots) so that they're all above each other. You should now have 2 numbers on top of each other to add together. If you have any gaps then quickly draw a 0 to fill it.

After this, start on the right hand side of the column and add together the numbers which are on top of each other. If the answer is less than 10 then write it below the numbers you just added together. If the number is above 10 then write down the last number: for example if your answer is 15 then write down 5, if your answer is 47 then write down 7, and if your answer is 22 then write down 2. The tens carries over to the next column of numbers (the column to the left of the one you just added together).

Keep doing this until you get to the far left of the column. If you've lined up the decimal point then you shouldnt have to worry about it whilst you do all the adding. 

Finally, add a decimal point into your answer exactly below the others in your column equation. 

Maddie S. 13 plus  Maths tutor, GCSE Maths tutor, 11 Plus Maths tutor

8 months ago

Answered by Maddie, a 11 Plus Maths tutor with MyTutor


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

119 SUBJECT SPECIALISTS

£18 /hr

Rebecca N.

Degree: Physics (Masters) - Warwick University

Subjects offered: Maths, Physics+ 1 more

Maths
Physics
-Personal Statements-

“About me: I am currently a Physics student at the University of Warwick, this degree incorporates two of my passions,Physics and Mathematics! I am very personable and patient, throughout secondary school I volunteered with the maths h...”

£18 /hr

Melissa P.

Degree: Mathematics (Bachelors) - Birmingham University

Subjects offered: Maths, Spanish

Maths
Spanish

“About me:  I am currently studying for a Maths degree at the University of Birmingham. I have enjoyed Maths since I was very young and hope I can pass some of this on to you!  I am very friendly. I have been coaching gymnastics since...”

£18 /hr

Billy W.

Degree: Philosophy, Politics & Economics (Bachelors) - Exeter University

Subjects offered: Maths, Religious Studies+ 3 more

Maths
Religious Studies
Philosophy and Ethics
-Personal Statements-

“I am a Philosophy, Politics and Economics first year student at the University of Exeter from Brentwood in Essex. Before university I studied at Westcliff High School for Boys which is an Academy Grammar School in Southend-on-Sea, Ess...”

MyTutor guarantee

About the author

£18 /hr

Maddie S.

Degree: Film and Televison Production (Bachelors) - York University

Subjects offered: Maths

Maths

“Who am I?I am a student at The University of York. I've just finished the first year of my Film and TV Production BSc degree.The main reason I chose to come to York was because it was a science based degree; I'd love to instill my ...”

You may also like...

Posts by Maddie

How do I add decimal numbers?

How do you simplify numbers with powers?

How should I present my working out?

Other 11 Plus Maths questions

When a price changes from £15 to £20. By how much percentage has the price changed?

Forty-seven thousand, nine hundred and eighty-three people went to a football match. What is this number rounded to the nearest thousand?

How do I work out the area of a rectangle

If 2x + y = 13 and 3x + 2y = 21, work out the values of x and y.

View 11 Plus 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