Number and Numeration
GCE Mathematics

a) Express 0.000426 in standard form. b) Without using mathematical tables or calculator, evaluate: (i) log₁₀ 0.001 (ii) log₂ 64 c) Given that log₁₀ 2 = 0.3010 and log₁₀ 3 = 0.4771, find the v…

a) Convert 11011101₂ to base 10. b) (i) Convert 347₁₀ to base 8. (ii) Hence, or otherwise, convert 347₁₀ to base 2. c) Evaluate 1101₂ × 101₂, giving your answer in base 2. d) A number in base 7 …

Evaluate: $\log_{10} 8 + \log_{10} 125$

A trader sells an article for ₦3,600 and makes a profit of 20%. What was the cost price of the article?

Find the number of significant figures in the value 0.003040.

If $\log_x 64 = 3$, find the value of $x$.

A sum of money is shared among Ade, Bola, and Chidi in the ratio 3:5:7. If Bola receives ₦15,000 more than Ade, how much does Chidi receive?

Convert $11011_2$ to base 10.

Express 0.000407 in standard form.