Number system Grade 8 Test

© 2007 1 -2010 tutorco.com Q1. Write the expanded form of 30,173 Q2. Write in figures: 600,000 + 700 + 5 Q3. Write the place value of 5 in 57,234,396 Q4. Simplify : NUMBER SYSTEM 8/1/6/S© 2007 2 -2010 tutorco.com Q5. Write P for the prime number and C for the composite number : 1) 23 2) 45 Q6. Find the prime factorisation of the following : 1) 240 2) 108 © 2007 3 -2010 tutorco.com Q7. Find the least common multiple (LCM) of the following numbers by prime factorization method: (i) 24, 36 (ii) 108, 270 © 2007 4 -2010 tutorco.com Q8. Find the greatest common divisor (GCD) of the following numbers by prime factorization method: (i) 45, 75 (ii) 240, 360