Question

5. How many perfect squares are there from 1 to 80?
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Answer 1

Answer:

8 (including 1) or 7 (excluding 1)

Step-by-step explanation:

1, 4, 9, 16, 25, 36, 49, 64, 81, 100 etc are square nos.

Here, first 8 nos. occur from 1 to 80

Answer 2

Answer:

The perfect squares are the squares of the whole numbers: 1, 4, 9, 16, 25, 36, 49, 64

Estimate - first, get as close as you can by finding two perfect square roots your number is between.

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