Elite Mathematics / Linear / Topics / Using a Calculator
IGCSE · 4MA1 · Topic Using a Calculator: practice questions & worked solutions
Recent 4MA1 Higher papers have not examined Using a Calculator, so these are original exam-style Elite practice questions, sorted from easiest to hardest. Try each one first, then open the worked solution.
7 questions
17 marks in total
0% of papers (0 of 54) include it – practise it with the Elite questions below
4/3/0 easy / medium / hard
Questions, easiest first Level is estimated from marks: 1–2 easy, 3–4 medium, 5+ hard.
1. Elite Practice · Q1 Easy 2 marks
Show worked solution Work out the top and the bottom \[
5.7^2-\sqrt{30.25}=32.49-5.5=26.99,\qquad 1.8\times0.65=1.17
\]
Divide \[
\frac{26.99}{1.17}=23.06837607\ldots
\]
Final answer \(23.06837607\)
2. Elite Practice · Q3 Easy 2 marks
Show worked solution Check the calculator is in degrees Then
\[
\frac{8.4\times\tan35^\circ}{\cos62^\circ}=\frac{5.8817\ldots}{0.46947\ldots}=12.528\ldots
\]
Round \(12.5\) (3 significant figures)
3. Elite Practice · Q5 Easy 2 marks
Show worked solution Substitute (brackets round the negative) \[
p^2-3q=2.6^2-3(-1.8)=6.76+5.4=12.16
\]
\[
\sqrt{p+q^2}=\sqrt{2.6+(-1.8)^2}=\sqrt{5.84}=2.4166\ldots
\]
Divide and round \[
\frac{12.16}{2.4166\ldots}=5.03184\ldots\approx5.032
\]
4. Elite Practice · Q6 Easy 2 marks
Show worked solution Evaluate each power \[
4.8^{-0.5}=\frac{1}{\sqrt{4.8}}=0.45643\ldots,\qquad 1.7^3=4.913
\]
Add and round \[
0.45643\ldots+4.913=5.36943\ldots\approx5.369
\]
5. Elite Practice · Q2 Medium 3 marks
Show worked solution (a) Use the calculator \[
4.3^3-\frac{1}{0.16}=79.507-6.25=73.257
\]
(b) Round to 3 significant figures The fourth figure is \(5\), so round up: \(73.3\).
Final answer (a) \(73.257\) (b) \(73.3\)
6. Elite Practice · Q4 Medium 3 marks
Show worked solution Add the top \[
3.7\times10^5+2.9\times10^4=370\,000+29\,000=399\,000
\]
Divide \[
\frac{399\,000}{8.1\times10^{-3}}=49\,259\,259.26\ldots
\]
Standard form, 3 significant figures \(4.93\times10^7\)
Final answer \(4.93\times10^{7}\)
7. Elite Practice · Q7 Medium 3 marks
Show worked solution (a) Round each number to 1 significant figure \[
\frac{20\times0.5}{4}=\frac{10}{4}=2.5
\]
(b) Calculator value \[
\frac{19.6\times0.48}{4.1}=2.2946\ldots\approx2.29
\]
Final answer (a) \(2.5\) (b) \(2.29\)
More IGCSE Maths 4MA1 topics
Dr Eslam Ahmed Elite Mathematics · Questions classified by topic, solutions checked by Dr Eslam