What will be the one's digit in the square 217777
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Because the units place in 21777 is 7 so square of the number 7 is 49
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(217777)^2
217777×217777
check last digit of both numbers
7×7
=49
ones digit=9 is answer
217777×217777
check last digit of both numbers
7×7
=49
ones digit=9 is answer
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