Question

7. Find the product of the following using quicker
grouping
(i) (-18) x 10 (-17) (ii) (-59) x 9 x 100
(iii) (-50) x 2 x (-13) (iv) 5 (-10) x 29
(v) (-80) x 100 x 180
(vi) 192536 x 100 +(-192536)
(vii) 795 x 89 + 5889
(viii) (-212) (-36) + (-212) × (-64)
(ix) 842 x( -56) -56 × (-842)
(x) 782 x (-526) - 526 X(-782) + 30 x 79
nli
Ci:​

Answer 1

i) -18×(-170)

=3060

ii) -59×900

-53100

iii) -50×-26

1300

iv) -50×29

-1450

v) -8000×189

1440000

vi) 192536×(-19253600)

-3707011129600

vii)70755+5889

76644

viii)7632+13568

21200

ix) -442862+47152

-395710

x)-411332+411332+2370

2370

l hope it will help you