Question

Find square of the number 85. (without actual multiplication)
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Answer 1

Step-by-step explanation:

there is a trick of square of no. which end at 5 like 25,35,45,55.... etc.

the trick is

we multiply the first no. with its consecutive no. and then paste 25 after it.

for example,

(25)² =625

2×3=6 and 25 so, 625

now, (85)²=7225

bcoz 8×9=72 and paste 25 so, 7225 answer

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Answer 2

Step-by-step explanation:

Answer. 4.5/5. 11. tejnagpal. Virtuoso. 89 answers. 6.6K people helped. there is a trick of square of no. which end at 5 like ...

there is a trick of square of no. which end at 5 like 25,35,45,55.... etc.the trick