Mathematics 4024 · O Level
Standard form
35 practice questions on Standard form, with worked solutions and instant marking.
Here, $p=4\times10^5,\ q=7\times10^6$.
May/June 2015
Write $0.00000521$ in standard form.
May/June 2015
Write $0.034 \times 10^{-3}$ in standard form.
May/June 2016
The table gives the populations of some African countries in $2014$, rounded to $2$ significant figures.
May/June 2016
Write $0.000186$ in standard form by expressing it as a power of ten.
May/June 2017
On one day in $2016$, Nepal’s population was $28\,795\,701$. Write this number correct to three significant figures.
May/June 2018
Thus, $N=2\times10^8$.
May/June 2018
Express $0.0000845$ in standard form.
May/June 2019
Arrange these numbers from smallest to largest. $2.1\times10^{-3},\;4.2\times10^{-4},\;1.7\times10^{-5},\;3.5\times10^{-4}$.
May/June 2019
This gives $a = \frac{b^2 + c}{d}$.
May/June 2021
Express $0.000053$ in standard form.
May/June 2021
State $0.000863$ in standard form.
May/June 2022
Arrange these numbers from the smallest to the largest: $2000$, $0.002$, $2\times10^{-4}$, $2\times10^{-2}$.
May/June 2022
The mass of the planet Saturn is $5.7 \times 10^{26}\text{ kg}$. The mass of the planet Venus is $4.9 \times 10^{24}\text{ kg}$. Calculate the difference in mass between Saturn and Venus. Give your answer in standard form.
May/June 2023
The table lists the population figures and land areas for three countries in 2019.
May/June 2023
Write $42\,000\,000$ in standard form.
May/June 2024
Kenya has a population of $5.71 \times 10^7$ people. Its land area is $6 \times 10^5\text{ km}^2$. Population density means the number of people in each $\text{km}^2$.
May/June 2025
Express $1.23 \times 10^{-4}$ in ordinary-number form.
May/June 2025
Write $45000000$ in standard form.
Oct/Nov 2016
Write $513\,000$ in standard form.
Oct/Nov 2016
Express the number $0.00012$ in standard form.
Oct/Nov 2017
Write $360$ million in standard form.
Oct/Nov 2017
Here, $N = 4 \times 10^{5}$.
Oct/Nov 2018
Here, $p = 8 \times 10^{-6}$ and $q = 2 \times 10^{11}$.
Oct/Nov 2018
Express the number $0.00023$ in standard form.
Oct/Nov 2019
Express the value of $4500 \times 1000^2$ in standard form.
Oct/Nov 2019
Express $0.043 \times 10^2$ as a number in standard form.
Oct/Nov 2020
Express $340\,000$ in standard form, giving the answer in that notation.
Oct/Nov 2020
Write the value $320\,000\,000$ in standard form.
Oct/Nov 2022
Express $7.54 \times 10^{-4}$ as a decimal number.
Oct/Nov 2022
Express $0.00493$ in standard form.
Oct/Nov 2023
Express $0.000257$ in standard form.
Oct/Nov 2024
Evaluate
Oct/Nov 2024
Write the number 0.0142 in standard form.
Oct/Nov 2025
Express 372000000 in standard form.
Oct/Nov 2025