Multiplication Trick for Numbers Between 90 and 100

Multiplication can be time-consuming, but with the right techniques, you can solve problems in seconds. One of the fastest tricks is for multiplying two numbers between 90 and 100—a simple method that avoids long calculations. This technique is incredibly useful for students, competitive exam aspirants, and anyone looking to enhance mental math skills.

Why Use This Multiplication Trick?

• Saves Time: No need for traditional multiplication steps.
• Boosts Accuracy: Reduces chances of errors in calculations.
• Ideal for Competitive Exams: Speed is essential in exams like CAT, GMAT, GRE, and government tests.
• Enhances Mental Math Skills: Helps in quick calculations without a calculator.

The Trick to Multiply Numbers Between 90 and 100

This shortcut is based on the concept of base 100 and works efficiently for numbers between 90 and 100.

Step-by-Step Method

Let’s multiply (A × B) where both A and B are between 90 and 100.

1. Find the deficiency from 100
   • Subtract each number from 100.
   • Example:
     • If A = 97, then 100 – 97 = 3
     • If B = 94, then 100 – 94 = 6
2. Subtract diagonally (or cross-subtract)
   • Subtract one number’s deficiency from the other number.
   • 97 – 6 = 91 or 94 – 3 = 91 (Both give the same result)
3. Multiply the deficiencies
   • 3 × 6 = 18
4. Write the two results together
   • First part: 91
   • Second part: 18
   • Final answer: 97 × 94 = 9,118

Example Problems Using This Trick

Example 1: 96 × 92

1. 100 – 96 = 4, 100 – 92 = 8
2. 96 – 8 = 88
3. 4 × 8 = 32
4. Final answer: 96 × 92 = 8,832

Example 2: 98 × 95

1. 100 – 98 = 2, 100 – 95 = 5
2. 98 – 5 = 93
3. 2 × 5 = 10
4. Final answer: 98 × 95 = 9,310

Example 3: 93 × 91

To make this concept easier to grasp, consider the following:

• Infographics: A step-by-step breakdown of how to multiply numbers between 90 and 100.
• Tables: A comparison of traditional multiplication vs. shortcut multiplication.
• Videos/Animations: A real-time demonstration of the trick in action.

Practice Questions

Try solving these using the trick:

1. 95 × 92 = ?
2. 97 × 93 = ?
3. 99 × 96 = ?
4. 94 × 91 = ?
5. 92 × 98 = ?

Check your answers using this shortcut and see how fast you can get them!

Real-Life Applications of This Trick

• Competitive Exams: Save time in quantitative sections.
• Shopping & Discounts: Quickly estimate prices and offers.
• Everyday Math: Solve problems without relying on a calculator.
• Business & Finance: Speed up calculations in budgets and reports.

Final Thoughts

Multiplying numbers between 90 and 100 doesn’t have to be a slow process. With this trick, you can compute results in seconds, boosting both speed and accuracy. Keep practicing, and soon, you’ll be solving these calculations instantly!