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Find product by using appropriate property:

(i) 26 x (- 48) + (-48) x (-56)
(ii) 8 x (78) x (-125)
(iii) 9 x (50 – 2)
(iv) 999 x 45

1 Answer

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Best answer

(i) 26 x (-48) + (-48) x (-56)

= (48) x 26 + (-48) x (-56)
= (-48) x [26 + (-56)]
= ( 48) x [26 – 56] = 48 x (-30)
= 1440

(ii) 8 x 78 x (-125)

= [8 x (-125)] x 78 

= -1000 x 78

= -78000

(iii) 9 x (50 – 2)

= 9 x 50 – 9 x 2 

= 450 – 18

= 432

(iv) 999 x 45

= (1000 – 1) x 45

= 1000 x 45 – 45 

= 45000 – 45

= 44955

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