Question

Q.19) Find the product, using suitable properties: (3 marks) . (1) 625 x 65 + 625 x ( -55) (2) (-57) x (-19) + 57 x (-9) ​

Answer 1

Answer:

1) 625(we will take as common)

So, 625 x [65 + (-55)]

= 625 x [65 - 55]

= 625 x 10 = 6250 is the answer.

2) (-57) (we will take as common)

So, -57 x [ -19 + (-9) ]

= -57 x [ -19 - 9 ]

= -57 x (-28)

= 1596 is the answer

The property used is Distributive Property.

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