Army Public School,
Golconda
Summer vacation
holidays homework
Class 7 Integer
(worksheet)
Note: do the following given worksheet in notebook,
neatly.
Question
1 What
is the value of (-22) - [(-23) - {(-17) - (-61)}]
Question 2 What should be subtracted from (-9876) to obtain (-9512)?
Question 3 The temperature of a city is 40C. Next day the temperature falls by 50C. What is the temperature of the city next day?
Question 4 Fill in the blanks
- Sum of integer and its additive
inverse is ……………….
- Sum of (-22) and (-44) is
……………….
- (-36) ÷ (……) = (-9)
Question 5 Mark
the correct option
- Sum of two negative numbers is
always
- Positive
- Negative
- 0
- 1
- Which property is reflected in
this equation 7×5=5×7
- Closure
- Commutative
- Associative
- Distributive
Question
6 A
divers descends 20 feet in the water from the boat at the surface of a lake. He
then rose 12 feet and descends another 18 feet. At this point what his depth in
water is?
Question 7 Verify a-(-b) =a + b for the following values of ‘a’ and ‘b’
i a=34
b=73
ii a=45
b=30
Question
8 Write
down the pair of integers whose
- Sum is -4
- Sum is 0
- Difference is 2
- Difference is -6
Question
9 Verify
the following using property-
- (-22) × [(-4) + (-5)] = [(-22)
× (-4)] + [(-22) × (-5)]
- (-12) × [(3) + (-9)] = [(-12) ×
(4)] + [(-12) × (-9)]
Question
10 Evaluate
- (-100) ÷ 5
- (-36) ÷ (-4)
- (0) ÷ (-12)
- [(-30) ÷ 5] ÷ 2
- (-40) ÷ 40
Question
11 The
price if a stock decreases Rs.45 per day for four consecutive days. What was
the total change in value of the stock over 4th day period?
Question 12 A group of hikers is descending the mountain at a rate of 600 feet per hour. What is the change in elevation of hiker after 6 hours?
Question 13 An elevator descends into a mine shaft at the rate of 6 m/min. If the descent starts from 10 m above the ground level, how long will it take to reach (-350) m.
Question 14 In a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer.
- Radhika answered all the
questions and scored 30 marks and get 10 correct answers
- Jay also answered all the
questions and scored (-12) marks though he got 4 correct answers
How many incorrect answers had they attempted?
Question 15 In a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer and 0 for answer not attempted. Ram gets 3 correct and 4 incorrect out of 7 questions he attempted. What is his score?
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