Pre-Algebra Pence 2014 Expressions Common Assessment Review Write (w)(w)(w)(w)(w)(w) using exponents Answer: w 6 Evaluate 2m 2 m=3 2(3) 2 18 Which symbol makes this statement true? (-3) 4 ? -3 4 Answer: > Evaluate 3 +2(5-2) 2 +8 Answer: 3 +2(3) (9) 9 4 * Evaluate 1 4 _ () 3 Answer Answer m 4 m5m5 m Answer Writeas an expression using a negative exponent Evaluate b -3 if b=3 (K 5 ) 11 K 55 (2m 5 ) -4 (4a 3 b)(-7ab 5 ) -28a 4 b 6 Which expression is the same as 81m 8 d 6 A. (9m 6 d 4 ) 2 B. (9m 4 d 3 ) 2 C. (6m 5 d 3 ) 3 Express 1,450,000 in scientific notation 1.45 x 10 6 Express 6.17 x 10 5 in standard form 617,000 7.5 x in standard form Chose a number that is greater than 2.7 x 10 4 A. 26,000 B. 1.4 x 10 5 C. 3.1 x D. 2.5 x 10 4 Express in scientific notation (8.8 x 10 2 )(2.25 x ) 1.98 x 10 1 Evaluate (1.25 x 10 4 ) - 9,400 Express the answer in scientific notation 3.1 x 10 3 Evaluate 5p 0 Answer 5 Answer -6d 5 e 6 Which of the following would be a reasonable weight of a pencil? List the animals weights from least to greatest AnimalsWeight (pounds) African Elephant Blue Whale Fin Whale Right Whale White Rhinoceros Which animal is about 10 times lighter than a right whale? AnimalsWeight (pounds) African Elephant Blue Whale Fin Whale Right Whale White Rhinoceros Answer: White rhino About how many times heavier is the blue whale than the African elephant? AnimalsWeight (pounds) African Elephant Blue Whale Fin Whale Right Whale White Rhinoceros Estimate the combined weight of the blue whale, fin whale, and right whale. Express your answer in standard notation. AnimalsWeight (pounds) African Elephant Blue Whale Fin Whale Right Whale White Rhinoceros