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Grade 8 Mathematics Review Spring 2004 Released Test Items Another M.B. Alluisi Production Copyright Norfolk Public Schools, 2005 Directions • Clicking on the correct answer will allow the puppy one piece of pepperoni • Feed the puppy all the pepperoni to complete the activity 9 8 10 7 18 11 17 16 19 6 20 12 13 1 2 15 14 4 3 5 Which is equivalent to the following? 7·3+4·6 7·3+6·4 7·4+3·6 25 · 6 7 · 42 9 8 10 7 18 11 17 16 19 6 20 12 13 2 15 14 4 3 5 Look at the set shown below. {2a, 3a, 4a} If a is a prime number, how many members of the set are also prime? 0 1 2 3 9 8 10 7 18 11 19 17 16 20 12 13 6 15 14 4 3 5 Which is equivalent to 13 – 33? 7 4 -10 -14 9 8 10 7 18 11 19 17 16 20 12 13 6 15 14 4 5 A = {2, 3, 5, 7, 11, 19, 23, 29} All numbers in A are odd. All numbers in A are prime. All numbers in A are even. All numbers in A are composites. 9 8 10 7 18 11 19 17 16 20 12 13 6 15 14 5 What is the value of (12 – 8)2 + 21 – 4? 1 3 33 1,089 9 8 10 7 18 11 19 17 16 20 12 13 15 14 6 The weather forecaster checked and emptied a rain gauge six times one day. The measurements in inches were 0.243, 0.595, 0.903, 0.756, 0.398, and 0.112. Which is the best estimate of the total rainfall that day? 2.0 in. 2.5 in. 3.0 in. 3.5 in. 9 8 10 7 18 11 19 17 16 20 12 13 15 14 What is the value of 6n(n-1) + 4, when n = 3? 44 40 36 19 9 8 18 17 10 11 19 16 20 12 13 15 14 Which of the following is not a perfect square? 49 64 81 99 9 10 18 11 19 17 16 20 12 13 15 14 A flight engineer for an airline flies an average of 2,923 miles per week. Which is the best estimate of the number of miles she flies in 3 years? 150,000 300,000 450,000 600,000 10 18 11 19 17 16 20 12 13 15 14 oxide magnesium oxygen magnesium magnesium oxygen magnesium oxide 18 11 19 17 16 20 12 13 15 14 They have high melting points They have low melting points They form crystals They conduct electricity when dissolved in water 18 19 17 16 20 12 13 15 14 as a solid when dissolved in water as a crystal when warmed slightly 18 19 13 17 16 20 15 14 ionic bond covalent bond polyatomic bond crystal bond 18 19 17 16 20 15 14 impossible weak. covalent ionic 18 19 17 16 20 15 1 2 3 4 18 19 17 16 20 It is an ionic compound Its nonpolar bond is stronger than its polar bond Its bonds are nonpolar The opposite pulling of its polar bonds cancel out 18 19 17 20 physical change chemical change conservation freezing 18 19 20 physical change chemical change chemical equation chemical formula 19 20 a chemical bond conservation of matter heat a chemical change 20 a physical change a chemical reaction matter is destroyed surface area increases Credits Animated Graphics are public domain from gifanimations.com Sound effects are free for education purposes and came from Free Sound Effects at http://www.stonewashed.net/sfx.html Not Correct – Try Again