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Test on Integers Marks : 30
Time : 1 Â½ hrs Instructions for Test on Integers 1. All questions are compulsory. 2. Please give the explanation for the answer where applicable. Q.1 The product of two numbers is 105. If one number is 7. What is the other number? [2] Q.2 Evaluate using properties wherever necessary [6] I. (5) x ( 5) x (5) x (5) II. (89) x 115 III. (742) x (12) IV. (4125) x (1) V. 0 x (42) VI. 6023 x 0 Q.3 Fill in the blanks and write the property used in each of the following : [4] 1) (15) x 87 =  x (15) 2) (32) + [ (3) + 8] =  + 8 3) (27) +  =  + (27) = 0 4) (476) x  = x (476) = (476) Q.4 Verify (70) x [ 17 + (13)] = [(70) x 17)] + [(70) x (13)] and state the property used. [3] Q.5 Find the sum: [4] (i) 256 and 328 (ii) 2002 and 135 Q.6 If a =  5, b = 6 and c = 8, then show that [4] (i) (a + b) + c = a + (b + c), (ii) (a â~ez_euro~~ez_ldquo~ b) ≠ (b  a). Q.7 Divide. [4] (i) 24 by 3 (ii) 0 by +8 (iii) 37 by +1 (iv) +13 by 1 Q.8 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 â~ez_euro~~ez_ldquo~ 350 m. [3] Q.9 In a class test containing 15 questions, 3 marks are given for every correct answer and (â~ez_euro~~ez_ldquo~1) marks given for every incorrect answer. (i) Gurpreet attempts all the questions but only 9 of her answers are correct. What is her total score? (ii) One of her friends gets only 5 answers correct. What will be her score? [4] To chapterwise test> Home Page Covid19 has led the world to go through a phenomenal transition . Elearning is the future today. Stay Home , Stay Safe and keep learning!!! Covid19 has affected physical interactions between people. Don't let it affect your learning.
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