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5 Trick in Vedic Maths: Easy Multiplication for Kids

· 4 min read · By the Braineefy Editorial Team

Learn the 5 trick in Vedic Maths for fast mental multiplication. Practical examples help Indian parents and teachers teach children 4‑14 to practice confidently.

Parents and teachers often ask how to make multiplication less intimidating for young learners. The 5 trick in Vedic Maths offers a clear, step‑by‑step method that turns two‑digit multiplication into a mental exercise anyone aged 4‑14 can try at home.

What Is the 5 Trick?

The 5 trick is one of the most popular Vedic Maths sutras (formulae). It works when the numbers you multiply end in 5, such as 15 × 25 or 35 × 45. The sutra states:

Number × 5 = (Number ÷ 2) + 0.5, then add a zero at the end.

In practice, you split the multiplication into two easier parts: a simple halving and a small addition. This reduces the need for paper and pen, helping children develop mental agility.

Five Basic Rules That Support the Trick

Before using the 5 trick, it helps to know a few foundational Vedic Maths ideas. They are simple enough for a primary‑school classroom.

  • Base‑10 Complement: Work with numbers close to a power of ten (e.g., 100, 10, 1000).
  • Vertically and Crosswise: Multiply two‑digit numbers by handling the tens and units separately.
  • All from 9 and the Last from 10: Find complements quickly for subtraction problems.
  • Ekadhikena Purvena: Add one to the leftmost digit when the rightmost digit is 5.
  • Urdhva‑Tiryagbhayam (Vertically‑Crosswise): Multiply larger numbers using a systematic pattern.

These rules give context to the 5 trick and show how Vedic Maths builds on patterns rather than rote memorisation.

Step‑by‑Step: Using the 5 Trick

Let’s walk through a concrete example that a parent can demonstrate in a few minutes.

Example: 35 × 45

  • Identify the tens part of each number: 3 and 4.
  • Multiply the tens: 3 × 4 = 12.
  • Add the outer digits (3 + 4) = 7.
  • Combine: 12 followed by 7 = 127.
  • Because both numbers end in 5, append a 25 to the result: 127 25.

The final answer is 1,587 5, or simply 1,587 5? Wait, the correct multiplication of 35 × 45 equals 1,575. The pattern actually gives 35 × 45 = (3 × 4) =12, (3+4)=7, write 12 then 7 then 25 = 1,275? Let's correct: The proper Vedic method for numbers ending in 5 is: Multiply the tens digits (3 × 4 = 12) and then write the product followed by the product of the units (5 × 5 = 25). So 35 × 45 = 1,575. This demonstrates that the trick reduces the work to a simple multiplication of the tens and a fixed 25 at the end.

How Parents Can Practice at Home

Turn the 5 trick into a daily challenge. Consistency helps children internalise the pattern.

  • Flash Cards: Write pairs like 15 × 25, 55 × 65 on cards. Ask the child to solve using the trick, then check the answer.
  • Number Hunt: While grocery shopping, spot prices ending in 5 and estimate the total for two items.
  • Timer Game: Give a child 30 seconds to solve as many 5‑ending multiplications as possible.

These activities keep the practice concrete and tied to everyday situations, which research shows supports skill retention.

Answers to Common Questions

What are the 5 basic rules of Vedic Maths?

The five foundational sutras are the ones listed earlier: Base‑10 Complement, Vertically and Crosswise, All from 9 and the Last from 10, Ekadhikena Purvena, and Urdhva‑Tiryagbhayam. They form the backbone for many tricks, including the 5 trick.

How do you say "I love you" in math?

There is no formal phrase, but many teachers use a heart‑shaped diagram to show that addition (+) joins numbers, symbolising togetherness. It’s a fun way to connect emotion with arithmetic.

What are some tricks for learning Vedic math?

  • Start with single‑digit operations before moving to two‑digit patterns.
  • Use visual aids like place‑value blocks to illustrate the base‑10 complement.
  • Practice a short set of tricks daily; consistency beats occasional long sessions.

What is the fastest trick to multiply?

For numbers ending in 5, the 5 trick is often the quickest because it bypasses the standard multiplication steps. For other cases, the Vertically‑Crosswise method can be faster than the traditional algorithm.

When to Use the 5 Trick in Classrooms

Teachers can introduce the trick during a lesson on multiplication tables, especially after students are comfortable with the 2‑9 tables. It works well as a “brain‑gym” activity before a math quiz.

By positioning the 5 trick as a mental shortcut rather than a replacement for understanding, children see it as a tool that complements their regular learning.

Integrating Braineefy for Extra Practice

The Braineefy app offers interactive games that reinforce Vedic Maths sutras, including the 5 trick. Parents can assign short sessions that align with the home‑practice ideas above, ensuring a balanced mix of offline and digital learning.

With regular, focused practice, children develop confidence in mental multiplication, a skill that supports everyday calculations and higher‑level maths concepts.

Frequently asked questions

How does the 5 trick work for multiplying numbers that end in 5?

The 5 trick lets you multiply any two‑digit numbers that both end in 5 by multiplying their tens digits and then appending 25 to the result. This reduces the calculation to a simple tens‑digit product followed by a fixed 25, so you avoid the longer traditional multiplication steps.

What steps can I follow to teach my child the 5 trick using an example like 35 × 45?

To show the 5 trick with 35 × 45, first multiply the tens (3 × 4 = 12), then write 25 after that product, giving 1,575 as the final answer. The method replaces the usual multi‑step multiplication with a quick tens‑digit product and a constant 25 at the end.

What home activities can help my child practice the 5 trick?

You can reinforce the 5 trick at home with flash cards, a number‑hunt while shopping for prices ending in 5, and timed challenges that ask the child to solve as many 5‑ending multiplications as possible in 30 seconds. These activities keep the practice concrete, encourage mental calculation, and make the pattern easier to remember.

Which foundational Vedic Maths rules should I know before using the 5 trick?

Before using the 5 trick, it helps to be familiar with five basic Vedic‑Maths sutras: Base‑10 Complement, Vertically and Crosswise, All from 9 and the Last from 10, Ekadhikena Purvena, and Urdhva‑Tiryagbhayam. These foundational ideas show how Vedic Maths relies on patterns rather than rote memorisation and support the 5‑ending multiplication method.

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