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Edexcel IGCSE Math A 1 numbers and the number system

Use this number-system set to practise integer skills, fraction work, decimals, powers, percentages, ratio, standard form and accuracy bounds.

Syllabus
First assessment 2018
Course
Math A 4MA1
Level
Foundation

Covered syllabus points

1.1 Integers1.2 Fractions1.3 Decimals1.4 Powers and roots1.5 Set language and notation1.6 Percentages1.7 Ratio and proportion1.8 Degree of accuracy1.9 Standard form1.10 Applying number1.11 Electronic calculators

1 Numbers and the number system question 1

[Maximum number: 3]

The diagram shows part of a number line.

Figure for Question 1 Numbers and the number system question 1 — Edexcel IGCSE Math A Foundation

Question (a)

(a)

Write down the number marked with the arrow.

[ 1 ]

Question (b)

(b)

On the diagram below, draw an arrow to show a temperature of 240∘C240^{\circ} \mathrm{C}

Figure for Question (b) — Edexcel IGCSE Math A Foundation
[ 1 ]

Question (c)

(c)

Write the number 0.786 correct to 2 decimal places.

[ 1 ]

1 Numbers and the number system question 2

[Maximum number: 6]

Question (a)

(a)

On the dotted line, write the number so that the two fractions are equivalent.

40100=⋯⋯⋯⋯⋯25\frac{40}{100}=\frac{\cdots \cdots \cdots \cdots \cdots}{25}
[ 1 ]

Question (b)

(b)

Write 114\frac{11}{4} as a mixed number.

[ 1 ]

Question (c)

(c)

Write 620\frac{6}{20} as a percentage.

[ 1 ]

Question (d)

(d)

Write 18100\frac{18}{100} as a decimal.

[ 1 ]

Question (e)

(e)

Work out 59\frac{5}{9} of 72

[ 2 ]

1 Numbers and the number system question 3

[Maximum number: 7]

Question (a)

(a)
Figure for Question (a) — Edexcel IGCSE Math A Foundation

Write down the number marked with the arrow.

[ 1 ]

Question (b)

(b)
Figure for Question (b) — Edexcel IGCSE Math A Foundation

Mark with an arrow ( ↑ ) the number 2.28

[ 1 ]

Question (c)

(c)

Write a number on the dotted line to make the calculation correct.

2.18+…=2.262.18+\ldots \quad=2.26
[ 2 ]

Question (d)

(d)

Write these decimals in order of size.

Start with the smallest decimal.
0.063
0.6
0.07
0.77
0.0011

[ 1 ]

Question (e)

(e)

Find the number that is exactly halfway between 12.9 and 13.7

[ 2 ]

1 Numbers and the number system question 4

[Maximum number: 5]

Here is a list of numbers.

289182428\begin{array}{llllll} 2 & 8 & 9 & 18 & 24 & 28 \end{array}

Question (a)

(a)

From the numbers in the list, write down

[ 4 ]

Question (i)

(i)

an odd number

[ 1 ]

Question (ii)

(ii)

a number that is a multiple of both 4 and 6

[ 1 ]

Question (iii)

(iii)

a cube number

[ 1 ]

Question (iv)

(iv)

a prime number

[ 1 ]

Question (b)

(b)

Work out the value of

62+23×56^{2}+2^{3} \times 5
[ 1 ]
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