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Solve the sum$-30 + 5 - [-17] - [-11]$
To do: Solve the sum.
Solution:
$-30 + 5 - [-17] - [-11]$
This can be solved by simple addition and subtraction,
$- [-17] = + 17 ....................................................................... [- x - = +]$
$-[-11] = + 11 ...................................................................... [- x - = +]$
$- 30 + 5 + 17 + 11$
Rewrite,
$5 + 17 + 11 - 30$
Now add all the numbers with positive sign, and subtract the negative numbers from that,
$33 - 30 = 3 [5 + 1 7 + 11 = 22 ]$
$-30 + 5 - (-17) - (-11) = 3$
Therefore the value of the expression
$-30 + 5 - [-17] - [-11]\ is \ 3$Advertisements