Question

simplify the following using brackets
a. 101×105
b. 70×108
c. 61 × 110​

Answer 1

Answer:

a)10605 ;

b)7560 &

c)6710

Step-by-step explanation:

a) 101 × 105

=  (100+1)(100+5)

=  (a+b)(a+c)

=  a² + ab + ac + bc

=  (100²) + (100×1) + (100×5) + (1×5)

=  10000 + 100 + 500 + 5

=  10605

b) 70 × 108

=  70 × (100+8)

=  a × (b+ c)

=  ab + ac

=  (70×100) + (70×8)

=  7000 + 560

=  7560

c) 61 × 110

=  (60+1) × (100+10)

=  (a+b) × (c+d)

=  ac + ad + bc + bd

=  (60 × 100) + (60 × 10) + (1 × 100) + (1 × 10)

=  6000 + 600 + 100 + 10

=  6710

Hope this helps mate :)

Mark me as the Brainlist plzz :)

Thanks....

Regards,

Aditya

Answer 2

Step-by-step explanation:

10605

7560

6710

hope it helps