Simplify:
(i) (−7) + (−9) + 12 + (−16)
(ii) 37 + (−23) + (−65) + 9 + (−12)
(iii) (−145) + 79 + (−265) + (−41) + 2
(iv) 1056 + (−798) + (−38) + 44 + (−1)

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Solution

(i) (−7) + (−9) + 12 + (−16)
= 12 − (7 + 9 + 16)
= 12 − 32
= −20

(ii) 37 + (−23) + (−65) + 9 + (−12)
= 37 + 9 − (23 + 65 + 12)
= 46-100
= −54

(iii) (−145) + 79 + (−265) + (−41) + 2
= 79 +2 − ( 145 + 265 + 41)
= 81 − 451
= −370

(iv) 1056 + (−798) + (−38) + 44 + (−1)
= 1056 + 44 − (798 + 38 + 1)
= 1100 − 837
= −263

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Similar questions

\frac{- 8}{15} + \frac{2}{- 3}

\frac{- 7}{10} + \frac{13}{- 15} + \frac{27}{20}

- 1 + \frac{7}{- 9} + \frac{11}{12}

\frac{- 11}{39} + \frac{5}{26} + 2

2 + \frac{- 1}{2} + \frac{- 3}{4}

\frac{- 9}{11} + \frac{2}{3} + \frac{- 3}{4}

Simplify:

(i)

(ii)

(iii)

(iv)

9, 16, 23, 30, 37, 44, 51

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