Question

Short Answer type
1. Find the value of:
40 (-36)=(-6)
(2) (49) (8-1)
(3) 81=(1-10)
(4) (-54)=[(-6)+(-12)]
(5) [(-28)+28] =[(-6)+(-2)]
(0[(-36) +25] =[(-25) +14]
Long Answer type
1. Evaluate (-48) =[(8) = 2] and [(48)=(-8)]
= 2 and verify whether division is associative
for integers or not. No
2. For a=18.b=-6.c=-3 verify whether (a+b)
= c and (a + c) + (b + c) are equal or not and
hence find out whether division is distributive
over addition? yes
3. A vegetable vendor earned a profit of Rs 2.50
by selling 1 kg onion but had to sell potatoes at
a loss of Rs 1.50 per kg. Although he sold 30
kg of onion, he had to bear a loss of Rs 30.
How much quantity of potatoes did he sell?
4. In Laddakh one evening at 5:00 pm the
temperature was 5 C. But due to heavy
snowfall there was a continuous drop in
temperature at the rate of 3°C per hour. What
would be the temperature at midnight ? At
what time would the temperature be 250
below freezing pointie, below 0°C?.​

Answer 1

Answer:

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