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Logarithms

Grade 10-11

What this lesson shows

2 to the WHAT makes 8? … That question — find the exponent — has a name. It's a logarithm.

Try it yourself

Real questions from this lesson's worksheets — answers below each one.

  1. Evaluate log_2(1).
    Show answer
    0
  2. Evaluate log_2(2).
    Show answer
    1
  3. How many POSITIVE divisors does 15 have? (the count of possible positive rational roots of x² − x − 15)
    Show answer
    4
  4. Evaluate log_3(1).
    Show answer
    0

Practise this every day

Eduyro gives your child a short daily worksheet on exactly this skill, and moves them on only once they have it. Watch the lesson, then build the fluency.

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