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Checkpoint: small powers and small numbers

Three questions on the new ideas. Feedback comes as you answer, and you can retry any time.

Which power of 3 is 1/81?

Write 0.00063 in standard form.

Write 7⁻² × 7⁵ as one power of 7.

0 of 3 answered

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This track

  1. 0 Start here
  2. 1 A short way to write a long multiplication
  3. 2 Two powers of one number, multiplied
  4. 3 Two powers of one number, divided
  5. 4 One power stacked on another
  6. 5 Walking the ladder down to zero
  7. 6 Every column is a power of ten
  8. 7 Writing a number too long to say
  9. 8 Which of two powers is larger
  10. 9 Counts below zero
  11. 10 Writing a very small number
  12. 11 Checkpoint: small powers and small numbers
  13. 12 The big picture
  14. 13 Track quiz

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