UrbanPro
true

Take Class 8 Tuition from the Best Tutors

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

Multiplication Of Two Digit Numbers Ending In 5.

Ajinkya Anant Jawalkar
14/06/2017 0 0

Case 1.) Multiplication of two digit numbers ending in five and tens place having the same number.

  • 25x25 = 625

Modus Operandi:

Multiply the units digits i.e, :5x5 = 25

Now for the tens digit. Multiply 2 with its immediate next number i.e.:3 So you get 2x3=6

Hence the answer = 625.

Case 2:) Multiplication of two digit numbers ending with 5 and units digits are different but their sum is 10.

  • 65x45 = 2925

Modus Operandi:

5x5 = 25 as above,

Now to multiply the tens digits. 6+4=10 (necessary condition: sum should always be 10)

  • 6x4 = 24
  • 24+5 = 29

Hence the answer = 2925

  • 85x25 = 2125
  • 15x95 = 1425
  • 35x75 = 2625
  • 45x65 = 2925
  • 55x55 = 3035


 

0 Dislike
Follow 1

Please Enter a comment

Submit

Other Lessons for You

Importance of math formulas
prepare formulas well to do quickly math problems

Venkata Krishna Randa

0 0
0

Difference between Vitamin B and Vitamin C
1. Vitamin B is found in 8 different forms. However, vitamin C is found only in a single form, ascorbic acid.2. Sources of vitamin B include meat, egg yolk, yeast etc. Vitamin C is obtained from fruits...

Structure Of Fullerence
The correctly suggested the cage structure as shown in the figure and named the molecule Buckminster fullerence after the architect Buckminster Fuller, the inventor of the Geodesic dome, which resembles...

Multiply 789 with 999 in 1 second Best Vedic Math Tricks
You will get the answers in two parts, The left hand side of the answer: subtract 1 from 789, which is 788 The right hand side of the answer subtract 789 from 1000 = 1000-789= 211 Thus, 999 x 789...

Sound Produced By Humans
In humans, the sound is produced by the voice box or the larynx. Put your fingers on the throat and find a hard bump that seems to move when you swallow. This part of the body is known as the voice box....
X

Looking for Class 8 Tuition Classes?

The best tutors for Class 8 Tuition Classes are on UrbanPro

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

Take Class 8 Tuition with the Best Tutors

The best Tutors for Class 8 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