Question

find the value of

(i)

$81265\times 169-81265\times 69$

(ii)

$3845\times 5\times 782+769\times 25\times 218$

Answer 1

(i)

$81265\times 169-81265\times 69$

$=81265\times (169-69)$ [Applied distributive property]

$=81265\times 100$

$=8126500$

(ii)

$3845\times 5\times 782+769\times 25\times 218$

$=(3845\times 5)\times 782+(769\times 25)\times 218$

$=19225\times 782+19225\times 218$

$=19225\times (782+218)$ [Applied distributive property]

$=19225\times 1000$

$=19225000$