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EXERCISE 6.1
1. What will be the unit digit of the squares of the following numbers?
(i) 81
() 272
(in 799
(iv) 3853
(v) 1234
(vi) 26387
(vii) 52698
(vii) 99880
(ix) 12796
(x) 55555
2. The following numbers are obviously not perfect squares. Give reason.
(i) 1057
(ii) 23453
(m) 7928
GV) 222222
(v) 64000
(vi) 89722
(vi) 222000
(vim) 505050
· The squares of which of the following would be odd numbers?
(i) 431
(ii) 2826
(III) 7779
(iv) 82004
Observe the following pattern and find the missing digits.
112 = 121
1012
10201
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