1
25
2
3
5
Exercise 1.2
1 Without using a calculator, work out the square roots in parts (i) and (ii). Then
estrate the square root in part (iii). Give positive and negative roots.
(ii) √36=
a) (i) √25:
=
(iii) √30
b) (i) √√4=
(iii) √5
c) (i) √0.81 =
(iii) √0.7
d) (i) √0.64=
(../0.55
(ii) √9=
(ii) √0.64
=
(ii) √0.49:
=
