Question

(0) 1+3+5+7+9+11+13+15+17
(c) 1 + 3 + 5 +7 + 9 + 11 + 13 + 15 +17+19+21 +23
(d) 1+3+5+7+9+11+13+15+17+19+21 +23+25+27
5. Calculate the following:
(a) (20)
(b) (25)
(c) (-11)
(a) (1.1)
4. Find the digits in the ones place in the squares of the following numbers.
(a) 43
(b) 61
5. Express each of the following squares as the sum of two consecutive numbers
(c) 165
(d) 999
(a) (17)
(b) (23)
(c) 192
6. Classify the following as the squares of odd or even numbers:
(a) 324
(b) 289
(c) 169
7. Find the square of the following rational numbers:
5
-2
(a)
(b)
3
3
8. Write a Pythagorean triplet with the smallest number in the triplet as 6.
nagorean triplet with the greatest number in the triplet as 5.
be perfect squares? Give reas
(C)
(b)
5​

Answer 1

Answer:

1+3+5+7+9+11+13+15+17+19+21+23 = 122 = 12×12 =144.