Using a Calculator (Edexcel IGCSE Maths): Exam Questions

Find the reciprocal of $2.5$

Work out $\sqrt[3]{ \frac{4.3 \times \tan 39^{ring} operator}{23.4 - 6.06} }$

Give your answer correct to $3$ significant figures.

Calculate the value of $\sqrt{\frac{\mathrm{tan}60^{\circ}+1}{\mathrm{tan}60^{\circ}-1}}$ Write down all the figures on your calculator display. You must give your answer as a decimal.

Use your calculator to work out $\frac{38.5\times14.2}{18.4-5.9}$

Write down all the figures on your calculator display. You must give your answer as a decimal.

Write your answer to part (a) correct to 1 significant figure.

i) Find the value of fifth sqrt of 3.2 x 10 ^ 11 )

ii) Find the value of $10^{\frac{3}{4}}$ Give your answer correct to $1$ decimal place.

Use your calculator to work out $\frac{\sqrt{70.25}}{4.2-2.37}$

Write down all the figures on your calculator display You must give your answer as a decimal.

Write your answer to part (a) correct to 4 decimal places.

Use a calculator to work out

$\frac{\sqrt{20.4}}{6.2\times0.48}$

Write down all the figures on your calculator display. Give your answer as a decimal.

Work out $\sqrt{\frac{2.5\times\mathrm{sin}43^{\circ}}{8.2^{2}-50.5}}$

Give your answer correct to $3$ significant figures.

Use your calculator to work out $\frac{1.45^{2}}{3.89-\sqrt{5.75}}$

Write down all the figures on your calculator display. You must give your answer as a decimal.

Use your calculator to work out $\frac{\sqrt{7056}}{0.35\times12.8}$

Write down all the figures on your calculator display. You must give your answer as a decimal.

Write your answer to part (a) correct to 1 significant figure.

Use your calculator to work out $19.42^{2} - \sqrt[3]{1006} \div 4.95$

Write down your full calculator display.

Use approximations to check that your answer to part (a) is sensible.

You must show your working.

Use your calculator to work out $\sqrt{\frac{\mathrm{sin}25^{\circ}+\mathrm{sin}40^{\circ}}{\mathrm{cos}25^{\circ}-\mathrm{cos}40^{\circ}}}$

Write down all the figures on your calculator display.

Write your answer to part (a) correct to $2$ decimal places.

Work out the square root of 100 million. Circle your answer.

Use your calculator to work out $\frac{29^{2}-4.6}{\sqrt{35-1.9^{3}}}$

Write down all the figures on your calculator display.

Write your answer to part (a) correct to 4 significant figures.

An approximation for the value of $π$ is given by

$4 ( 1 - \frac{22}{57} + \frac{22}{85} - \frac{22}{105} + \frac{22}{117} - \frac{22}{242} )$

Use your calculator to show that this approximation is within 0.1 of 3.14

Calculate.

$\sqrt{\frac{4.8^{2}+3.6^{2}}{4}}$

$\frac{1}{( 2 \times 10^{4} ) + ( 5 \times 10^{3} )}$

Use your calculator to work out $\sqrt{1-(\mathrm{sin}33^{\circ})^{2}}.$

Use a calculator to find the decimal value of $\frac{\sqrt{29-3\times32^{0.4}}}{3}$.

Work out $\frac{\sqrt{17+4^{2}}}{7.3^{2}}$

Write down all the figures on your calculator display.

Calculate.

$\frac{16.379-0.879}{4.2}\times1.241$

Give your answer correct to 2 significant figures.

Calculate $\frac{4}{\sqrt{0.0025}}$.

Calculate $\sqrt{256^{0.25}+4\times8}$.

Calculate.

$\frac{5}{8} + \sqrt[3]{340}$

Calculate $\sqrt[3]{8.1^{2} - 1.3^{0.8} } .$

Calculate.

$\frac{5.39-0.98}{0.743-0.0743}$

$\sqrt[3]{2^{3} + 2}$

Calculate $\sqrt{2.38+6.4^{2}}$, writing down your full calculator display.

Calculate $\sqrt{17.8}-1.3^{2.5}$.