Find the square of the following number without actual multiplication of 37
53
82
Answers
Answered by
11
Answer:
37² = 1369
53² = 2809
82² = 6724
Step-by-step explanation:
37² = (30+7)² = (30+7)(30+7)
= 900 + 210 + 210 + 49
= 1369 {answer}.
53² = (50+3)² = (50+3)(50+3)
= 2500 + 150 + 150 + 9
= 2809 {answer}.
82² = (80+2)² = (80+2)(80+2)
= 6400 + 160 + 160 + 4
= 6724 {answer}.
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