Question

Solve using properties.

a)134 X 99

b)36 X -101

c) -145 X -205​

Answer 1

Step-by-step explanation:

1) 134 × 99

= 134 × (100 - 1)

=( 134×100 )-(134×1)

= 13400 - 134

= 13,266

2) 36 × (-101)

= 36 × (-100 -1)

= [36×(-100)] - [36×(-1)]

= -3600 - (-36)

= -3600 + 36

= -3,636

3) -145 × (-205)

= -145 × [-200 - 5 ]

= [-145 × (-200)] - [-145 × 5]

= 29000 +725

= 29,725

Like 10 answers = take 20 likes