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Continue the power pattern consistently - Online practice 1

Read the information, then answer the questions. An adult may read the instructions aloud. Show your working where asked.

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Investigate base 2 with exponents 0 and -3. For non-zero a, a^0 = 1 and a^(-n) = 1/(a^n). A negative exponent indicates a reciprocal, not automatically a negative value. Brackets decide whether a minus sign belongs to the base: (-a)^2 differs from -(a^2). Do not apply the zero-power rule to a zero base here.

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  1. Evaluate 2^0 and 2^(-3).
  2. Check 2^(-3) by multiplying it by 2^3.
  3. Compare (-2)^2 with -(2^2).

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