Question

1. Can we say whether the following numbers are perfect squares? How do we know?
(a) 1057 (b) 23453 (c) 7928 (d) 222222 (e) 1069 (f) 2061
2. Write five numbers which you can decide by looking at their one’s digit that they are not
square numbers.
3. The squares of which of the following would be odd numbers?
a) 831 b) 8226 c) 8889 d) 28004
4. What will be the ones digit in the square of the following numbers?
a) 1234 b) 26387 c) 52698 d) 99880 e) 21222 f) 9106
5. Fill in the blanks:
(i) All those numbers, which can be expressed as the product of the number with itself.
are called ---------- of that number.
(ii) If m= n
2
, then ------------- is a perfect square, where m, n are natural numbers.
(iii) All square numbers end with 0, 1, 4, 5, 6 or 9 at --------------- place.
(iv) The square of add numbers are always ---------------.
(v) 36 is a perfect square of natural number-------------.

Answer 1

Step-by-step explanation:

1. (f)2061 The Square of a number can't have 7,3,8,2 in their one's place

2. 122,127,133,2008,111113

3. a)831, b)8889

You can know by sqauring their one's place only. Ex. 1x1=1 ,9x9=81

4. a)6 b)9 c)4 d)0 e)4 f)6

Answer 2

Answer:

.

Step-by-step explanation: