PreAssessment-Exponents-Grade8

Pre-Assessment Grade -8 © 2006 -2010 tutorco.com 1 2 marks for each Question Exponents 1. 2 x 2 x 2 can be written in exponential form as : a) 23 b) 2*3 c) 8 d) 2(3) 2. Evaluate : (14)8 x (14)4 a) (14)4 b) (14)12 c) (14)32 d) (196)32 Pre-Assessment Grade -8 © 2006 -2010 tutorco.com 2 3. Evaluate : (-2)3 a) 6 b) +8 c) -8 d) -6 4. Evaluate : (0.2)2 a) 4 b) 0.04 c) 0.4 d) 40 Pre-Assessment Grade -8 © 2006 -2010 tutorco.com 3 5. Scientific notation of 132.4 is : a) 1.324x102 b) 1.324x10-2 c) 1324.0x10-1 d) 13240x10-2