Fill in the blank :
$[(- 12) + (- 15)] + (- 5) = (- 12) + [(- 15) + . . . . .]$

(- 12)

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(- 15)

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(- 5)

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5

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Solution

The correct option is C $(- 5)$
Addition is associative for integers
$i . e . (a + b) + c = a + (b + c)$
$∴ [(- 12) + (- 15)] + (- 5) = (- 12) + [(- 15) + (- 5)]$
So, $C$ is correct.

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Similar questions

State true or false.
12 x 15 - 12 x 5 = 12 (15 - 5)

Fill in the blanks to make the following statements true:

(i) (− 5) + (− 8) = (− 8) + (…)

(ii) − 53 + … = − 53

(iii) 17 + … = 0

(iv) [13 + (− 12)] + (…) = 13 + [(− 12) + (− 7)]

(v) (− 4) + [15 + (− 3)] = [(− 4) + 15] +

\frac{- 15}{2} \times \frac{12}{5} = \frac{12}{5} \times \frac{- 15}{2}

\frac{12}{18} + \frac{5}{15}

\frac{1}{- 15} + \frac{5}{- 12}

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