Question

answer these all questions with explanation​

Answer 1

Step-by-step explanation:

$1) \: \: - 1032 + 878 = - 154$

$- 34 - ( - 154) = - 34 + 154$

$=120$

2) L.H.S

$- 9 - ( - 6)$

$= - 9 + 6$

$= - 3$

R.H.S

$- 6 - ( -9)$

$= - 6 + 9$

$= 3$

Therefore L.H.S is not equal to R.H.S

$Hence \: Proved$

3) L.H.S

$- 6 - ( - 2) + 5$

$= 6 + 2 + 5$

$= 13$

R.H.S

$- 1 - ( - 2) - 3$

$= - 1 + 2 - 3$

$= - 2$

Therefore L.H.S > R.H.S

$4) \: \: 20 \times ( - 16) + 20 \times 4$

$= 20( - 16 + 14)$

$= 20( - 2)$

$= - 40$

$5) \: \: 8 \times ( - 9)$

$= - 72$

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