Question

7. Find the following using relevant property.
(1) 784x117-784 x 17
(iii) 93078x1786-93078 x 786
(v) 322 x 678 + 205 x 322 +322 117​

Answer 1

Answer:

Step-by-step explanation:

1) Applying Distributive property over subtraction

(axb) - ( axc) = a x ( b-c)

784x117-784 x 17

= 784 ( 117 - 17)

= 784 x 100

= 78400

iii) Applying Distributive property over subtraction

(axb) - ( axc) = a x ( b-c)

93078x1786-93078 x 786

= 93078 ( 1786 - 786)

= 93078 x 1000

= 93078000

v) Applying Distributive property over addition

(axb) + ( axc) = a x ( b+c)

322 x 678 + 205 x 322 +322X 117​

= 322 ( 678+ 205 + 117)

= 322 ( 1000)

= 322 x 1000

= 322000

Answer 2

Step-by-step explanation:

1) 1222550784

2) 93078000

3) 606503