Edexcel IGCSE Math A Foundation 1.11 Electronic Calculators Questions

Practise using a scientific calculator accurately with powers, roots, fractions and decimals, recording enough display figures.

Exam points

evaluate mixed operations with powers, roots and fractions using calculator order correctly
write down the calculator display to enough figures, avoiding premature rounding

Covered syllabus points

1.11.A Using a scientific calculator

[Maximum number: 2]

Use your calculator to work out the value of

\frac{7.45}{4.3^{2}-2.9}

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

Final answer:
$0.4778704298\ldots$

A1 must have a minimum of 5 decimal places.
M1 for calculating the denominator, an answer with 3 or 4 decimal places, or the correct fraction $\frac{745}{1559}$ .

[Maximum number: 2]

Work out the value of $\frac{56^{2}+\sqrt{983}}{42.6-28.9}$
Write down all the figures on your calculator display.

[Maximum number: 2]

Work out the value of $\frac{\sqrt{9.3+2.8^{3}}}{3.2 \times 1.2}$

Write down all the figures on your calculator display.

Final calculator display:
1.45582(0007)
B1 alternatives include $5.590\ldots$ , 3.84, 1.45, 1.46, 1.455, 1.456, or 1.4558.

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Covered syllabus points

Question 1

Question 2

Question 3