Math, asked by YashaanBidhuri0027, 11 months ago

Evaluate the following, using distributive property.
(i) – 39 × 99 (ii) (– 85) × 43 + 43 ×(-15) (iii) 53 × ( – 9) – ( – 109) × 53 (iv) 68 × (–17) + ( –68) ×3

Answers

Answered by ishwarsinghdhaliwal
17

Using Distributive Property

a(b+c)=ab+ac

(i)

-39×99

=-39 ×(100-1)

=-3900+39

=-3861

ii)

(– 85) × 43 + 43 ×(-15)

=43× (-85-15)

=43× (-100)

=-4300

(iii)

53 × ( – 9) – ( – 109) × 53

=53×(-9+109)

=53×100

=5300

(iv)

68 × (–17) + ( –68) ×3

=> 68 × (–17) + 68×(-3)

=68× (-17-3)

=68(-20)

=-1360

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