Numbers Accuracy Difficulty: Easy
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Numbers & Accuracy Difficulty: Easy
Question Paper 2
Level Subject Exam Board Topic Sub-Topic Paper Difficulty Booklet
Time allowed:
Score:
Percentage:
IGCSE Maths (0580/0980) CIE Number Numbers & Accuracy Paper 2 Easy Question Paper 2
35 minutes
/27
/100
Grade Boundaries:
CIE IGCSE Maths (0580)
A*
A
B
C
D
E
>88%
76%
63%
51%
40%
30%
CIE IGCSE Maths (0980)
9
8
7
6
5
4
3
>94%
85%
77%
67%
57%
47%
35%
Question 1
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By writing each number correct to 1 significant figure, estimate the value of
Show all your working.
[2]
Question 2
Work out the highest common factor (HCF) of 36 and 90.
[2]
Question 3
Write down the difference in temperature between 8?C and -9?C.
[1]
2
Question 4
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Write 168.9 correct to 2 significant figures.
[1]
Question 5
11
12
13
14
15
16
From the list of numbers, write down
(a) the factors of 60, [1]
(b) the prime numbers.
[1]
Question 6
At noon the temperature was 4 ?C. At midnight the temperature was ?5.5 ?C.
[1] Work out the difference in temperature between noon and midnight.
3
Question 7
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(a) Write 30 as a product of its prime factors.
[2]
(b) Find the lowest common multiple (LCM) of 30 and 45. [2]
Question 8
Find the lowest common multiple (LCM) of 24 and 32.
[2]
.
Question 9
6 Write 15.0782 correct to
(a) one decimal place,
[1]
(b) the nearest 10.
[1]
4
Question 10
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1
Insert one pair of brackets only to make the following statement correct.
6 + 5 ? 10 ? 8 = 16
[1]
Question 11
(a) Write 90 as a product of prime factors.
[2]
(b) Find the lowest common multiple of 90 and 105.
[2]
5
Question 12
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(a) In the spaces provided, write each number in this calculation correct to 1 significant figure.
[1]
(b) Use your answer to part (a) to estimate the value of p.
[1]
Question 13
(a) Write 569000 correct to 2 significant figures.
[1]
(b) Write 569 000 in standard form.
[1]
Question 14
1In March 2011, the average temperature in Kiev was 3?C.
In March 2012, the average temperature in Kiev was 19?C lower than in March 2011.
[1]
Write down the average temperature in Kiev in March 2012.
6
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