Question

S
Hen
A natu
2.
Examg
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Solut
1. Write the unit's digits of the squares of the following numbers :
(a) 93
(b) 72
(c) 546
(d) 729
(e) 5430
Are the following numbers perfect squares? Give reasons,
(a) 729000
(b) 5398
(c) 1024 (d) 52900
(e) 97297
2116
(g) 5929
3. Identify the squares of which of the following numbers are odd and which are even
(a 231
(b) 792
(c) 2304 (d) 5972 (e) 2952
4. Find the square of the following:
(a) 47
(b) 7.5
(c) 1.23
5. Write a Pythagorean triplet whose one member is :
(a) 8
(b) 12
(c) 14
6. Without actual squaring, find the value of :
(a) 42² – 412
(b) 6852 - 6842 (c) 1082 - 1072
7. How many numbers lie between
(a) 72 and 82
(b) 112 and 122 (C) 152 and 162 (d) 292 and 302​

Answer 1

Answer:

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