November 16, 2025
Fast Maths

Multiplication of Large Numbers 

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Two large numbers, one of which is even, can be multiplied easily using this method. First, divide the even number by 2. Then, multiply the second number by 2. Multiply the resultant numbers to get the final answer.
Multiplication of Large Numbers 
For example: Let’s take 40 × 155 Divide 40 by 2: 40 ÷ 2 = 20 Multiply the second number, which is 155 by 2: 155 × 2 = 310 Now, multiply the resultant numbers together: 20 × 310 = 6,200 The answer is 6,200 So, 40 × 155 = 6,200 Try these at home: 20 × 131 = _____60 × 112 = _____80 ×
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