Question

55
Squares and Square Roots
Exercise 3.2
(v) 5124
(x) 12796
(v) 64000
1. Write five numbers which you can decide by looking at their one's digit that they are
not
square
numbers.
2. What will be the unit digit of the squares of the following numbers?
(i) 951
(ii) 502
(iii) 329
(iv) 7643
(vi) 7625
(vii) 68327
(viii) 95628
(ix) 99880
3. The following numbers are obviously not perfect squares. Give reason.
(1) 4567
(ii) 2453
(iii) 6298
(iv) 46292
4. The square of which of the following numbers would be an odd number or an even
number? Why?
(1) 573
(ii) 4096
(iii) 9267
(iv) 57916
5. How many natural numbers lie between square of the following numbers?
(1) 12 and 13 (ii) 35 and 36
6. Without adding, find the sum.
(i) 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15
(ii) 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23 + 25 + 27 + 29
7. Express 64 as the sum of 8 odd numbers.
8. Express the following as the sum of two consecutive integers:
(i) 152
(ii) 232
(iii) 372
9. Find the squares of the following numbers containing 5 in unit's place:
(1) 25
(ii) 305
(iii) 525​

Answer 1

Answer:

hope it help....... :)

Answer 2

Answer:

hi

Step-by-step explanation: