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प्रश्न
What will be the unit digit of the square of the given number?
55555
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उत्तर
- We know that if a number has its unit’s place digit as a, then its square will end with the unit digit of the multiplication a × a.
- Since the given number has its unit’s place digit as 5, its square will end with the unit digit of the multiplication (5 × 5 = 25) i.e., 5.
संबंधित प्रश्न
Find the least number which must be subtracted from the following numbers to make them a perfect square:
2361
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Find the value of:
\[\frac{\sqrt{80}}{\sqrt{405}}\]
Find the value of:
\[\frac{\sqrt{441}}{\sqrt{625}}\]
Without doing the actual addition, find the sum of:
1 + 3 + 5 + 7 + 9 + ……………… + 39 + 41.
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