Question

Find the value using suitable properties.
a) 437 x 12 + 12 x 563
b) 1991 x 1005

Answer 1

Step-by-step explanation:

1)

=437*12+12*563

=(437+563)*12

=1000*12

=12000

2)

=1991*1005

=(1991+5)*(1005-5)

=1996*1000

=1996000

Distributive property

Answer 2

Answer:

1) 12000

2) 2000955

Step-by-step explanation:

According to BDMAS method, we first have to solve the bracket then division, multiplication, addition and at last subraction.

Therefore in the 1st question, first solve,

437*12=5344

and then solve

12*563=6756

and then add both the numbers: 5344+6756=12000