San Ġorġ Preca College Secondary School, Blata l-Bajda
Half-Yearly Examinations - February 2015
Subject: Mathematics
Main Paper
Track:1
Name & Surname:
_________________________
Teacher:
_________________________
Form: 4
Class:
Time:1 hr 40 min
_____ Index No:
________
1. Round these numbers to the nearest hundred:
a. 523 =
_____________
b. 396 =
_____________
c. 2,618 =
_____________
2. Round these numbers to the nearest thousand:
a. 7,459 =
_____________
b. 8,097 =
_____________
c. 18,308 =
_____________
3. Round these numbers to one significant figure:
a. 531 =
_____________
b. 1,895 =
_____________
c. 28,539 =
_____________
(9 marks)
4. Work out:
a. 4.2 x 10 =
_____________
b. 3.75 x 100 =
_____________
c. 2.2 x 300 =
_____________
d. 34,000 ÷ 100 =
_____________
e. 76,000 ÷ 1000 =
_____________
(5 marks)
Maths Form 4 Track 1 – 2015
Page 1 of 6
5. Work out the cost, in Euro, of :
a. 80 rulers at 40 cents each:
Ans: _________
b. 500 pencils at 20 cents each:
Ans: _________
c. 400 pens at 60 cents each:
Ans: _________
(3 marks)
6. How many grams are there in:a. Half a kilogram
_____________
b. A quarter of a kilogram
_____________
(2 marks)
7. How many ml are there in
a. 5 litres?
_____________
b. 6.5 litres?
_____________
(2 marks)
8. What decimal number does each arrow point to?
A
B
A
C
B
D
C
E
D
E
(5 marks)
9. Hank says that this arrow points to 3∙2 but Neil says that it
points to 3∙4.
Who is correct? __________________
(1 mark)
Maths Form 4 Track 1 – 2015
Page 2 of 6
10. Which numbers in the loop are:
2
27
5
9
100
31
3
64
a. odd numbers:
__________________________________
b. multiples of 3:
__________________________________
c. prime numbers:
__________________________________
d. factors of 10:
__________________________________
e. square numbers:
__________________________________
(5 marks)
11. Use the clues provided to find the number.
A two digit
Multiple of 9
Multiple of 10
number
The number is _________
(3 marks)
12. Work these out:
a. 2 − (−7) =
__________________________________
b. −7 + (−3) =
__________________________________
c. 3 + (−7) =
__________________________________
d. −8 + (−4) − (−7) =
__________________________________
e. −3 − (−4) − (−5) =
__________________________________
(5 marks)
13. Fill in.
a.
4
×
=
−8
b.
−5
×
=
−25
c.
8
×
=
−24
d.
−20
×
=
100
=
−30
e.
×
−6
(5 marks)
Maths Form 4 Track 1 – 2015
Page 3 of 6
14. If a = −2, b = −3 and c = 4. Find the value of:
a. 2abc
Ans: _________
b. 3a
Ans: _________
c. 10b
Ans: _________
d. 3a + 10b + 2c
Ans: _________
(8 marks)
15. Find the value of:
a. 25% of € 160
Ans: _________
b. 50% of 3000kg
Ans: _________
c. 20% of 60 litres
Ans: _________
(6 Marks)
Maths Form 4 Track 1 – 2015
Page 4 of 6
16. Which is the cheaper option, A or B ?
Option A
Option B
James buys 3 bottles of water.
Monika buys 2 bottles of water.
Each bottle contains 1 litre.
Each bottle contains 1.5 litres.
The price of 1 bottle is €1.20
The price of 1 bottle is €2
Show your working here:
The cheaper option is _______________
(5 marks)
17. A recipe for a chocolate cake uses flour, butter and sugar in the ratio of 5 : 3 : 2
a. How much grams of butter do I need for a cake of 1 Kg?
Ans: _________
b. How much grams of flour do I need for a cake of 2 Kg?
Ans: _________
c. If 600 grams of sugar are used, how much grams of flour are needed?
Ans: _________
(6 Marks)
Maths Form 4 Track 1 – 2015
Page 5 of 6
18. Find the angles marked with letters. Show your working and give reasons.
100°
𝑎 = _________°
𝑎
30°
Reason: ____________________________
𝑏 = _________°
𝑏
Reason: ____________________________
45°
𝑐 = _________°
Reason: ____________________________
𝑑 = _________°
Reason: ____________________________
50°
𝑒 = _________°
Reason: ____________________________
𝑓 = _________°
Reason: ____________________________
𝑔 = _________°
Reason: ____________________________
ℎ = _________°
Reason: ____________________________
(10 marks)
Maths Form 4 Track 1 – 2015
Page 6 of 6