alleryStart learning →Using the pattern for two-digit numbers beginning with 5, what is 53 squared?
A2809
B2819
C2709
D2909
Answer & Solution
Correct answer: A. 2809
With units digit m = 3 the first pair is 25 + 3 = 28 and the second pair is 3 squared = 09, giving 2809.
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