find the square of 682by using a diagonal method
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Answer:
277729.
Step-by-step explanation:
527×52736891054×+2635××−−−−−−−−−277729¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
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