Question

a) 125. (-4) . (-16) . 25 . 8

b) 16 . (38 + 2) - 38.(16 - 2)

Answer 1

\(a,125.\left(-4\right).\left(-16\right).25.8\\ =125.8.25.\left(-4\right).\left(-16\right)=1000.\left(-100\right).\left(-16\right)\\ =1000.1600\\ =1600000\\ b,16.\left(38+2\right)-38.\left(16-2\right)\\ =16.40-38.14\\ =640-532\\ =108\)

Answer 2

a,    125.(-4).(-16).25.8

=(125.8). { (-4).25} .(-16)

= 1 000.(-100).(-16)

= 1 600 000

b, 16. (38+2) - 38.( 16 - 2)

= 16.38 + 16.2 - 38.16 + 38.2

= 2.(16 + 38)

= 2. 54

= 108

Answer 3

`a,125xx(-4)xx(-16)xx25xx8`

`=(125.8)xx{ (-4).25}xx(-16)`

`=1000xx(-100)xx(-16)`

`=1600000`

`b,16.(38+2)-38xx( 16 - 2)`

`= 16xx38+16xx2-38xx16+38xx2`

`=2xx(16 + 38)`

`=2xx54`

`=108`

`@Nae`