UrbanPro
true

Take Class I-V Tuition from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Search in

Mental Maths Addition

A
Amrtha S.
17/03/2017 0 0

What are the strategies to calculate mental math addition?

The tricky strategies to calculate addition mentally in your head is an important part in mathematics.  Year-by-year practicing will help us to learn how to use mental math tricks or techniques in an appropriate way.

Tips: Practice whenever you get free time in school, at work, etc.,

There are some skills, which are used to solve the questions of addition easily and conveniently. Use mental math strategies to calculate addition to sharpen your mental maths skills.

Here are some examples in which mental math addition skills are used

Problems to calculate mental math tricks for addition:

1. Add 4 + 8

Solution:   

4 + 8 = 8 + 4

4 + 8 = 8 + I, I, I, I

         = 8, 9, 10, 11, 12

Therefore, 4 + 8 = 8 + 4 = 12

 

 

Instead of adding 8 to 4, 4 is added to 8 as 4 + 8 = 8 + 4.

While calculating mentally, we go to count four numbers ahead.

2. Add 5 + 17

Solution:

We know that, 5 + 17 = 17 + 5

So, 17 + (I, I, I, I, I)

= 17, 18, 19, 20, 21, 22

Therefore, 5 + 17 = 17 + 5 = 22

 

 

Instead of adding 17 to 5, 5 is added to 17 as 5 + 17 = 17 + 5.

While calculating mentally, we go to count five numbers ahead.

3. Add 8 + 5 + 3

Solution:

8 + 5 + 3 = 8 + 3 + 5

= 11 + 5

= 16

Therefore, 8 + 5 + 3 = 8 + 3 + 5 = 16

 

Instead of adding 8 + 5 + 3 we arrange the numbers as 8 + 3 + 5 then, 8 + 3 = 11 and 11 + 5 = 16

4. Add 70 + 40

Solution:

70 + 40

= 110

 

Only the digits at ten’s place are added, if the numbers are the multiples of 10.

Zero is placed at one’s place in the addition result.

5. Add 60 + 35

Solution:

60 + 35

= 60 + 30 + 05

= 90 + 05

= 95

Therefore, 60 + 35 = 95

 

 

 

Numbers are split in tens and ones.

Sum of tens and sum of ones are added.

6. Add 67 + 43

Solution:

67 + 43

= (60 + 7) + (40 + 3)

= 60 + 40 + 7 + 3

= 100 + 10

= 110

Numbers are split in tens and ones and then do addition.

 

      or,
                  67

                  43
                  10 (7 + 3)

                 100 (60 + 40)
                 110

Sum of ones and sum of tens both are added.

7. Add 39 + 53

Solution:

39 + 53

= 39 + 1 + 53 – 1

= 40 + 52

= 92

The above tricky strategies will help us to calculate mental math addition to sharpen the math skills to perform easily.

0 Dislike
Follow 1

Please Enter a comment

Submit

Other Lessons for You

English: Capitalization
Capitalization: 1. Capitalization means using a capital letter. Example: Using 'A' instead of 'a' 2. The use of capital letters helps readers read your writing without confusion. 3. Always capitalize...
A

Atharva

1 0
0

Effective study habits
Effective study Habits, we are creature of our habits. Substitute bad habits of learning with good habits of learning. Right attitude. Approach the material you are studying with right attitude. Get...

OAA
I suggest a writing tip called OAA which means Observe Analyse and Apply. one will find it easy to answer any question if you follow this trip

Paste your aim in your room
Make a small wall poster which states your aim or the marks you want to score and paste it in your study room.This will boost your spirit to learn and make you achieve your goal.

Creating a study plan
This seems like a complete no-brainer but top students never fail to properly plan their future success. If you are feeling overwhelmed with the amount of work you have on your plate, a clear and a balance...
X

Looking for Class I-V Tuition Classes?

The best tutors for Class I-V Tuition Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Take Class I-V Tuition with the Best Tutors

The best Tutors for Class I-V Tuition Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more