Using a Calculator (Cambridge International IGCSE Mathematics): Exam Questions

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

Calculate.

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

Calculate.

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

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

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.

Extract:

Use your calculator to work out ![(38.5 x 14.2)/(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.

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

Calculate

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

Give your answer correct to 2 significant figures.

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

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

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

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

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

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 $19.42^{2} - \sqrt[3]{1006} \div 4.95$

Write down your full calculator display.

Extract:

Use your calculator to work out 19.42 squared – cube root of 1006 divided by 4.95

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

You must show your working.

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.

Extract:

Use your calculator to work out ![(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.

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.

Extract:

Use your calculator to work out ![sqrt( (sin 25 deg + sin 40 deg)/(cos 25 deg - cos 40 deg) )]

Write down all the figures on your calculator display.

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