Question

Find the square of the following number without actual multiplication of 37
53
82

Answer 1

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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