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Evaluate using distributive property.. i. -39×99 …

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

Posted by Anjana Kansana 5 years, 6 months ago

CBSE > Class 07 > Mathematics

1 answers

Yogita Ingle 5 years, 6 months ago

i. -39×99
= - 39 × (100- 1)
= -39(100) +39 (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 - 3)
= 68 (-20)
= - 1360

0Thank You

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CBSE > Class 07 > Mathematics