Easy Trick to Divide a Number by 5 When the Last Digit is 1

 

Easy Trick to Divide a Number by 5 When the Last Digit is 1

Dear Students,

We have already learned several tricks for dividing numbers by 5. Today, we will learn another simple and interesting trick that helps us quickly divide numbers ending in 1 by 5.

As you know, this blog regularly publishes educational articles and useful mathematics tricks. Our goal is to make mathematics easier and more enjoyable for students. Therefore, I request you to follow this blog and share it with your friends and relatives.

Now, let's learn today's trick.

The Trick

If a number ends with the digit 1 and you want to divide it by 5, follow these simple steps:

Step 1

Ignore the last digit 1.

Step 2

Multiply the remaining number by 2.

Step 3

Place a decimal point after the result and write 2 after the decimal point.

The resulting number will be your answer.

Example 1: 51 ÷ 5

Let's divide 51 by 5.

  • Ignore the last digit 1.
  • The remaining number is 5.
  • Multiply 5 by 2:

5 × 2 = 10

Now place a decimal point and write 2 after it:

10.2

Therefore,

51 ÷ 5 = 10.2

Verification:

10.2 × 5 = 51 ✓

Example 2: 101 ÷ 5

Now let's divide 101 by 5.

  • Ignore the last digit 1.
  • The remaining number is 10.
  • Multiply 10 by 2:

10 × 2 = 20

Add a decimal point and write 2 after it:

20.2

Therefore,

101 ÷ 5 = 20.2

Verification:

20.2 × 5 = 101 ✓

Example 3: 231 ÷ 5

  • Ignore the last digit 1.
  • The remaining number is 23.
  • Multiply 23 by 2:

23 × 2 = 46

Add a decimal point and write 2 after it:

46.2

Therefore,

231 ÷ 5 = 46.2

Verification:

46.2 × 5 = 231 ✓

Example 4: 501 ÷ 5

  • Ignore the last digit 1.
  • The remaining number is 50.
  • Multiply 50 by 2:

50 × 2 = 100

Add a decimal point and write 2 after it:

100.2

Therefore,

501 ÷ 5 = 100.2

Verification:

100.2 × 5 = 501 ✓

Conclusion

Whenever a number ends in 1 and you need to divide it by 5, simply ignore the last digit, multiply the remaining number by 2, and then write .2 after the result.

This shortcut allows you to find the answer quickly without using the traditional long division method.

In the next article, we will learn more quick and interesting tricks for dividing numbers by 5.

If you found this trick useful, please share it with your friends and follow our blog for more educational content and mathematics shortcuts.

By : Danish 

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