Evaluate -7- -11-5- -9-13- 4

Given the problem is ( 7)× ( 11) ( 5)× ( 9)+( 13)× 4Now, ( 7)× ( 11) ( 5)× ( 9)+( 13)× 4={( 7)× ( 11)} {( 5)× ( 9)}+{( 13)× 4} ...

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Standard VII

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Sambhaji Maharaj

Evaluate -7× ...

Question

Evaluate $(- 7) \times (- 11) - (- 5) \times (- 9) + (- 13) \times 4$

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Solution

Given the problem is $(- 7) \times (- 11) - (- 5) \times (- 9) + (- 13) \times 4$
Now,
$(- 7) \times (- 11) - (- 5) \times (- 9) + (- 13) \times 4 = \{(- 7) \times (- 11)\} - \{(- 5) \times (- 9)\} + \{(- 13) \times 4\}$
$= 77 - 45 + (- 52) = 77 - 45 - 52 = 77 - 97 = - 20$
Hence, the required answer is $- 20$

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Evaluate (-7)×(-11)-(-5)×(-9)+(-13)×4

Given the problem is (-7)×(-11)-(-5)×(-9)+(-13)×4Now, (-7)×(-11)-(-5)×(-9)+(-13)×4=(-7)×(-11)-(-5)×(-9)+(-13)×4 =77-45+(-52)=77-45-52=77-97=-20Hence, the required answer is -20

Evaluate $(- 7) \times (- 11) - (- 5) \times (- 9) + (- 13) \times 4$