MUST-KNOW Handy Trick For Squaring Numbers Ending In Five
Here's a handy trick for squaring numbers ending in 5:
**Quick Squaring Trick for Numbers Ending in 5:**
1. Take any number ending in five.
2. Multiply the digit in the tens place by itself plus one.
3. Append 25 to the result.
For example:
- "Fifteen squared" (\(15^2\)):
- Take the digit in the tens place (1) and multiply it by itself plus one (1 * 2 = 2).
- Append 25 to the result: 225.
- So, "Fifteen squared" is 225.
- "Thirty-five squared" (\(35^2\)):
- Take the digit in the tens place (3) and multiply it by itself plus one (3 * 4 = 12).
- Append 25 to the result: 1225.
- So, "Thirty-five squared" is 1225.
This trick provides a quick and easy way to square numbers ending in 5, saving time in mental calculations.
No comments:
Post a Comment