8.2.5

© 2006 1 -2008 tutorco.com Recommended time: 50 minutes 1. Find the least common multiple (LCM) of the following numbers by division method: (i) 580, 162 (ii) 468, 358, 1056 2. Find the greatest common divisor (GCD) of the following numbers by common division method: (i) 1280, 1440 (ii) 1980, 1456, 1140 3. Find the greatest common divisor (GCD) of the following numbers by long division method: (i) 1452, 3156, 1480 (ii) 1240, 2940, 1284 REVIEW AND ASSESMENT TEST 8/2/5/VL© 2006 2 -2008 tutorco.com 4. Arrange the following numbers in ascending order: (i) – 12, – 9, – 2, – 4 (ii) – 9, 0, 1, 3, – 2 5. Write the absolute values of each of the following: (i) | – 100| (ii) | 120 | (iii) | – 45 | (iv) |– 125| 6. Write the next three integers of each of the given numbers: (i) –5 (ii) 10 (iii) – 45 (iv) 17 (v) – 29 7. Arrange the following numbers in the decreasing order: (i) 10, – 9, – 3, –10 (ii) 17, – 8, – 7, 4, –2 © 2006 3 -2008 tutorco.com 8. Three farmers have 200 kg, 175 kg and 140 kg of sugar, respectively. Find the maximum capacity of a bag so that the sugar can be packed in equal number of bags. Also find the maximum number of bags required to pack all the sugar. 9. Find the smallest number which when divided by 64, 128 and 144 leaves remainder 4 in each case. 10. The GCD of two numbers is 20 and LCM is 240. If one of the numbers is 80, then find the other.