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Question
(−20)×(5−9)= _______
(−20)×(5−9)= _______
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Solution
The correct option is A (+80)
(−20)×(5−9)=(−20)×(5+(−9))
=(−20)×(−4)
[To add one negative and positive integer, find the difference of the numbers and keep the sign of the larger number.]
= (+80)
[When you multiply two negative integers , the result will always be a positive integer.]
(+80)
(−20)×(5−9)=(−20)×(5+(−9))
=(−20)×(−4)
[To add one negative and positive integer, find the difference of the numbers and keep the sign of the larger number.]
= (+80)
[When you multiply two negative integers , the result will always be a positive integer.]
Suggest Corrections
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(ii) 
(iii) 
(v) 
(vi) 
