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Seventh Grade (Grade 7) Scientific Notation Questions

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Grade 7 Scientific Notation
What is 0.000062 in scientific notation?
  1. [math]6.2 xx 10^5[/math]
  2. [math]6.2 xx 10^-4[/math]
  3. [math]6.2 xx 10^-5[/math]
  4. [math]6.2 xx 10^4[/math]
Grade 7 Scientific Notation
Write in scientific notation.

42,300
  1. fourty two thousand three hundred
  2. [math]4.23 xx10^4[/math]
  3. .00423
  4. 40,000 + 2,000 + 300
Grade 7 Scientific Notation
By some estimates, the population of the world in the year 2025 will be 7,824,000,000. What is the number written in scientific notation?
  1. [math]78.24 xx 10^8[/math]
  2. [math]7.842 xx 10^9[/math]
  3. [math]7.824 xx 10^8[/math]
  4. [math]7.824 xx 10^9[/math]
Grade 7 Scientific Notation
Convert the number to scientific notation.

137,000,000
  1. [math]1.37xx10^8[/math]
  2. [math]1.37xx10^3[/math]
  3. [math]1.37xx10^10[/math]
  4. None of the Above
Grade 7 Scientific Notation
Identify the correct scientific notation for 136 Tm.
  1. [math]1.36 xx 10^2[/math] m
  2. [math]1.36 xx 10^9[/math] m
  3. [math]1.36 xx 10^-9[/math] m
  4. [math]1.36 xx 10^14[/math] m
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