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Eighth Grade (Grade 8) Arithmetic and Number Concepts Questions

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Grade 8 Scientific Notation CCSS: 8.EE.A.4
What is 0.000062 in scientific notation?
  1. 6.2×105
  2. 6.2×10-4
  3. 6.2×10-5
  4. 6.2×104
Grade 8 Rational and Irrational Numbers CCSS: 8.NS.A.1
Which of these numbers is irrational?
  1. 34
  2. 237
  3. 1345
  4. 6332
Grade 8 Systems of Equations CCSS: 8.EE.C.8, 8.EE.C.8b
What is the solution to y=12x-3 and y=12x+3?
  1. (-3,3)
  2. (-3,6)
  3. (12,3)
  4. No solution
Grade 8 Scientific Notation CCSS: 8.EE.A.4
Choose the correct answer.
(2.6×103)×(1.8×109)
  1. 4.68×103
  2. 4.68×1012
  3. 4.68×106
  4. 4.68×109
Grade 8 Rational and Irrational Numbers CCSS: 8.NS.A.1
Grade 8 Scientific Notation CCSS: 8.EE.A.4
Choose the correct scientific notation for 245,389,271.
  1. 2.45×10-8
  2. 2.45×10-7
  3. 2.45×107
  4. 2.45×108
Grade 8 Fractions and Ratios CCSS: 8.NS.A.1
Grade 8 Scientific Notation CCSS: 8.EE.A.4
Choose the correct scientific notation for 540,000,000.
  1. 5.4×108
  2. 5.4×10-7
  3. 5.4×107
  4. 5.4×109
Grade 8 Fractions and Ratios CCSS: 8.NS.A.1
Grade 8 Scientific Notation CCSS: 8.EE.A.4
Choose the correct notation for 700,000.
  1. 7×105
  2. 7×108
  3. 7×103
  4. 7×104
Grade 8 Systems of Equations CCSS: 8.EE.C.8, 8.EE.C.8b
What is the solution to y=5x-7 and y=5x+1?
  1. (12,3)
  2. (-25,-6)
  3. (25,-6)
  4. No solution
Grade 8 Fractions and Ratios CCSS: 8.NS.A.1
Grade 8 Proportional Relationships
Grade 8 Systems of Equations CCSS: 8.EE.C.8, 8.EE.C.8b
Grade 8 Rational and Irrational Numbers CCSS: 8.NS.A.2
Grade 8 Scientific Notation CCSS: 8.EE.A.4
Choose the correct answer.
8.6×10134.1×103
  1. 2.1×10-16
  2. 2.9×1010
  3. 2.09×1016
  4. 2.1×1010
Grade 8 Scientific Notation CCSS: 8.EE.A.4
Choose the correct scientific notation for 75,000,000,000.
  1. 7.5×107
  2. 7.5×108
  3. 7.5×109
  4. 7.5×1010
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