Class 8 Mathematics 1st Model Test Paper

Exercise 1.1

1. Using appropriate properties find.
(i)

-23×35+52-35×16

(ii)

25×-37-16×32+114×25

Solution : (i) We have,

-23×35+52-35×16

=-23×35-35×16+52

=-3523+16+52

=-352×2+16+52

=-35×4+16+52

=-35×56+52

=-36+52

=-3×1+5×36

=-3+156

=126=2