Question

What will be the units digit of the square of the following number
Exercise - 6.1
1.
(1) 39
(ii) 5125
(ii) 297
(iv) 7286
2. Which of the following numbers are perfect squares?
(1) 121 (ii) 136 (iii) 256
(iv) 32
3. The following numbers are not perfect squares. Give reasons?
(1) 257
(ii) 4592 (iii) 2433 (iv) 5050
Find whether the square of the following numbers are even oro
(131​

Answer 1

Answer:

1

5

9

6

121

2,3,7,8 on the unit digit is not possible

odd

Step-by-step explanation:

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Answer 2

Answer:

1.

I) 1

ii) 5

iii) 9

iv) 6

2.

1) 121,iii) 256

3.

numbers starting with 2,3,7,8 are not squares.

numbers having odd number of zeros in end are not squares.

4.

131 has odd square.