Addition of Decimals
We will discuss here about the addition of decimals. Decimals are added in the same way as we add ordinary numbers. We arrange the digits in columns and then add as required.
Let us consider some of the following examples on adding decimals.
1. Add 3.4, 4.6 and 5.2
|
Step I: Write the numbers vertically aligning on the decimal points. Add the tenths. 4 + 6 + 2 = 12 Place 2 in the tenths column and place the point before it. Carry 1 to the whole number part. Add the whole numbers. 3 + 4 + 5 + 1 = 13 The sum of 3.4, 4.6 and 5.2 is 13.2 |
The required sum is 13.2 |
2. Add 14.539, 5 and 3.8
|
Step I: Write the numbers vertically aligning on the decimal points. Write equivalent decimals of 5 and 3.8 up to three places. 5 = 5.000 3.8 = 3.800 Add thousandths 9 + 0 + 0 = 9. Write 9 under thousandths Add hundredths 3 + 0 + 0 = 3. Write 3 under hundredths Add tenths 5 + 0 + 8 = 13. Write 3 under tenths and carry 1 to ones place. Add ones. 4 + 5 + 3 + 1 = 13. Write 3 under ones and carry 1 to tens place. Add tens. 1 + 1 = 2. Write 2 under tens. |
The required sum is 23.339 |
3. Add 46.25, 108.45 and 456.62
We arrange the digits of decimals in columns and then we add the numbers as usual.
|
4 6 . 2 5 1 0 8 . 4 5 + 4 5 6 . 6 2
6 1 1 . 3 2 |
While adding we ensure that the decimal point of all the numbers should be in the same column. |
Sometimes the numbers to be added may not have digits for each column. In such case, we can add zero at the extreme right or left of a given decimal number.
4. Add 230.45, 189.568 and 25.709
Here we will see adding decimals in two ways. We arrange the digits of decimals in columns and then we add the numbers as usual.
|
2 3 0 . 4 5 1 8 9 . 5 6 8
+ 2 5 . 7 0 9 4 4 5 . 7 2 7 |
Or, |
2 3 0 . 4 5 0 1 8 9 . 5 6 8 + 0 2 5 . 7 0 9
4 4 5 . 7 2 7 |
Questions and Answers on Addition of Decimals:
I. Add the following:
(i) 7.9 + 2.8 + 3.2 + 16.8 = ..............
(ii) 83.1 + 18.2 + 45.4 + 14.7 = ..............
(iii) 24.35 + 19.10 + 28.39 + 5.40 = ..............
(iv) 10.00 + 1.05 + 2.30 + 8.75 = ..............
Answer:
I. (i) 30.70
(ii) 161.40
(iii) 77.24
(iv) 22.10
From Addition of Decimals to HOME PAGE
Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.
Recent Articles
-
5th Grade BODMAS Rule Worksheet | PEMDAS | Order of operations|Answers
Apr 03, 25 02:56 AM
5th grade bodmas rule worksheet -
Before and After Video | Math Worksheets on Number | Before and After
Apr 03, 25 12:44 AM
Free math worksheets on numbers before and after help the kids to check how much they are good at numbers. The purpose of this math activity is to help your child to say a number in order and also hel -
Order of Numbers Video | Before and After Numbers up to 10 | Counting
Apr 03, 25 12:39 AM
We will learn the order of numbers in a number line. In numbers and counting up to 10 we will learn to find the before and after numbers up to 10. -
Counting Before, After and Between Numbers up to 10 Video | Counting
Apr 03, 25 12:36 AM
Counting before, after and between numbers up to 10 improves the child’s counting skills. -
Numbers and Counting up to 10 | Why do we Need to Learn Numbers?|Video
Apr 03, 25 12:33 AM
We will learn numbers and counting up to 10 to recognize the numerals 1 through 10. Counting numbers are very important to know so that we can understand that numbers have an order and also be able to
New! Comments
Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.