Indices

Hong Kong

Stage 1 - Stage 3

Evaluate the following expression: $4^7\times4^{-5}$47×4−5.

Easy

< 1min

Evaluate the following expression: $8^{-10}\times8^{13}$8−10×813.

Easy

< 1min

Evaluate the following expression: $5^2\times5^{-4}$52×5−4.

Easy

< 1min

Simplify the following, giving your answer with a positive index: $2^3\div2^{-2}$23÷2−2

Easy

< 1min

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