Language, notation and formulas

2.7.1 Try some yourself

Activity 8

Evaluate the following:

  • (a) 34

  • (b) 3

  • (c) 5−1

  • (d)

  • (e) (6 − 2)3

Answer

  • (a) 34 = 3 × 3 × 3 × 3 = 81.

  • (b) 3 = 3 (since 3 × 3 × 3 = 27).

  • (c) 5−1 = or 0.2.

  • (d) = = 2.

  • (e) (6 − 2)3 = 43 = 4 × 4 × 4 = 64.

OpenLearn - Language, notation and formulas
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