Test of Chapter: 1 (Integers) Class: 7 Time: 45 minutes M.M. 15
Question 1What should be subtracted from -9876 to obtain -9512? (1)
Question 2
The temperature of a city is 40C. Next day the temperature falls by 50C. What is the temperature of the city next day? (1)
Question 3.
Fill in the blanks
* Sum of integer and its additive inverse is ____________
* -36 ÷ (_______)=-9. (1)
Question 4
Mark the correct option. (2)
* 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 5
Verify a-(-b) =a + b for the following values of ‘a’ and ‘b’
* a=34 b=73. (1)
Question 6
Write down the pair of integers whose. (1)
* Sum is -4
* Sum is 0
Verify the following
* (-22) × [(-4) + (-5)]=[(-22) × (-4)] + [(-22) × (-5)] (2)
Question 7
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. (3)
Question 8
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? (3)
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class 7