Why These Math Tricks Will Change Your Life

Did you know that EdmusingShield's expert math teachers in Mumbai, Pune, and Bangalore have taught these amazing tricks to thousands of students? These are the same secrets used by math olympiad winners and competitive exam toppers.

1

The Amazing 11 Rule - Multiplying by 11

This trick will teach you to multiply by 11 in seconds! It's so fast, you'll beat the calculator.

Let's multiply: 23 × 11 = ?

Step 1: Separate the digits → 2 __ 3
Step 2: Add them → 2 + 3 = 5
Step 3: Place between → 2 5 3
Answer: 23 × 11 = 253 ✨

Practice Time:

Try these: 34 × 11, 52 × 11, 71 × 11

Answers: 374, 572, 781

Test Your Skill: 11 Rule

45 × 11 = ?
2

Lightning Fast Multiplication by 5

Multiplying any number by 5 is now possible in 1 second. This is EdmusingShield's most popular trick.

Let's multiply: 38 × 5 = ?

Step 1: Divide by 2 → 38 ÷ 2 = 19
Step 2: Add a zero → 190
Answer: 38 × 5 = 190 ⚡

For odd numbers: Divide, round down, add 5 at the end

37 × 5 = ?

37 ÷ 2 = 18.5 → Round down to 18
Add 5 at end → 185

Test Your Skill: Multiply by 5

64 × 5 = ?
3

The Mind-Blowing 99 Addition Trick

Adding 99 will now be instantaneous. This trick blows students' minds.

Let's add: 456 + 99 = ?

Step 1: Add 100 instead → 456 + 100 = 556
Step 2: Subtract 1 → 556 - 1 = 555
Answer: 456 + 99 = 555 🧠

Test Your Skill: 99 Addition

278 + 99 = ?
4

Squaring Numbers Ending in 5 (Viral Trick)

This trick is going viral on social media. Find the square of numbers ending in 5 in seconds.

Let's square: 75² = ?

Step 1: Take first digit → 7
Step 2: Multiply by next number → 7 × 8 = 56
Step 3: Add 25 at end → 5625
Answer: 75² = 5625 🎯

Challenge:

Can you solve 95² in 3 seconds?

Answer: 9 × 10 = 90, add 25 → 9025

Test Your Skill: Square Numbers Ending in 5

65² = ?
5

The Magic 9 Pattern

The hidden magic pattern in the 9's table. This trick will make you an expert in calculations with 9.

Magic in the 9's table:

9 × 1 = 09 → 0 + 9 = 9
9 × 2 = 18 → 1 + 8 = 9
9 × 3 = 27 → 2 + 7 = 9
9 × 4 = 36 → 3 + 6 = 9

Pattern: The sum of the digits of every answer is always 9!

Test Your Skill: Magic 9 Pattern

9 × 7 = ?
6

Divisibility by 7 (Advanced Trick)

This trick is very useful in competitive exams. Instantly find out if a number is divisible by 7.

Is 343 divisible by 7?

Step 1: Remove last digit → 34 (removed 3)
Step 2: Double the removed digit → 3 × 2 = 6
Step 3: Subtract → 34 - 6 = 28
Step 4: 28 ÷ 7 = 4 → Yes, divisible

Test Your Skill: Divisibility by 7

Is 154 divisible by 7?
7

Left to Right Addition (Speed Master)

Instead of the traditional right-to-left, add from left-to-right. This method will make you faster than a calculator!

Let's add: 847 + 695 = ?

Step 1: Add hundreds → 800 + 600 = 1400
Step 2: Add tens → 40 + 90 = 130
Step 3: Add units → 7 + 5 = 12
Step 4: Total → 1400 + 130 + 12 = 1542
Answer: 847 + 695 = 1542 📊

Test Your Skill: Left to Right Addition

523 + 348 = ?
8

Complement Method for Subtraction

A genius method to convert subtraction into addition. This trick makes mental math super easy.

Let's subtract: 1000 - 387 = ?

Step 1: Find complement of 387 to 1000
Step 2: 1000 - 387 = 613
Shortcut: 9-3=6, 9-8=1, 10-7=3 → 613
Answer: 1000 - 387 = 613 🎪

Test Your Skill: Complement Method

1000 - 456 = ?
9

Lightning Fast Percentage Calculations

Calculating percentages is now possible in seconds. Useful everywhere, from shopping discounts to exam marks.

Find: 15% of 240 = ?

Step 1: 10% of 240 = 24
Step 2: 5% of 240 = 12 (half of 10%)
Step 3: Add them → 24 + 12 = 36
Answer: 15% of 240 = 36 📈

Test Your Skill: Percentage Calculations

25% of 160 = ?
10

The Amazing Digital Root Trick

Find the digital root of any large number instantly. This trick is super useful in numerology and competitive exams.

Find digital root of: 9875 = ?

Method 1 (Traditional): Add all digits repeatedly
9 + 8 + 7 + 5 = 29
2 + 9 = 11
1 + 1 = 2
🚀 Lightning Method: Use remainder trick
9875 ÷ 9 = 1097 remainder 2
If remainder = 0, then digital root = 9
Otherwise, digital root = remainder
Digital Root of 9875 = 2 ✨

Quick Challenge:

Find digital root of: 12345, 999, 1000

Answers: 6, 9, 1

Where is this used?

  • Check calculations: Digital root of answer should match
  • Divisibility tests: Quick way to check if number is divisible by 9
  • Competitive exams: Fast verification of answers
  • Fun party trick: Impress friends with instant calculations

Test Your Digital Root Skills

Let's see if you mastered the amazing digital root trick

What is the Digital Root of 12345?

Quick Tip:

12345 ÷ 9 = 1371 remainder 6, so Digital Root = 6!

EdmusingShield Math Tricks Classes in Your City

Join thousands of students who are already using these mind-blowing tricks

📍 Mumbai Live Classes

12,500+ students from Andheri to Bandra master math tricks through EdmusingShield's 1-on-1 live online classes. Personalized attention for CBSE, ICSE, IGCSE & IB students.

Math Programs: CBSE | ICSE | IGCSE & IB | IIT-JEE | NEET | Vedic Maths

📍 Pune Live Classes

8,200+ students from Kothrud to Sinhagad Road excel with 1-on-1 live online math classes. Expert guidance for CBSE, ICSE, IGCSE & IB, plus IIT-JEE and NEET preparation.

Math Programs: CBSE | ICSE | IGCSE & IB | IIT-JEE | NEET | Vedic Maths

📍 Bangalore Live Classes

6,800+ students from Whitefield to Koramangala learn through 1-on-1 live online sessions. Comprehensive coverage of CBSE, ICSE, IGCSE & IB, IIT-JEE, NEET and Vedic Maths.

Math Programs: CBSE | ICSE | IGCSE & IB | IIT-JEE | NEET | Vedic Maths

Why Do These Math Tricks Actually Work?

These aren't just magic tricks - they're based on solid mathematical principles. At EdmusingShield, our expert teachers explain the "why" behind every shortcut, so you understand the concept completely.

Benefits of Learning These Tricks:

  • Boost Exam Speed: Solve 3x more problems in the same time
  • Build Confidence: No more math anxiety or fear
  • Improve Mental Math: Calculate without pen and paper
  • Competitive Edge: Excel in JEE, NEET, banking exams
  • Daily Life Skills: Quick calculations for shopping, discounts
  • Impress Everyone: Become the math genius in your group