Indices
Hong Kong
Stage 1 - Stage 3
Evaluate expressions with integer base and negative powers
Interactive practice questions
Consider the expression $2^{-4}$2−4. Which of the following is it equivalent to?
$\frac{1}{2^4}$124
A
$\left(-2\right)^4$(−2)4
B
$2^4$24
C
$2\times\left(-4\right)$2×(−4)
D
Easy
< 1min
Evaluate $2^{-3}$2−3 by first expressing it with a positive index. Give your answer as a fraction.
Easy
< 1min
Evaluate $8^{-2}$8−2 by first expressing it with a positive index. Give your answer as a fraction.
Easy
< 1min
Evaluate $2^{-6}$2−6 by first expressing it with a positive index. Give your answer as a fraction.
Easy
< 1min
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