1. Round These Numbers to the Nearest Hundred

San Ġorġ Preca College Secondary School, Blata l-Bajda

Half-Yearly Examinations - February 2015

Subject: Mathematics Main Paper / Track:1 / Form: 4 / Time:1 hr 40 min
Name & Surname: / ______/ Class: / _____ / Index No: / ______
Teacher: / ______

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)

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 / C / 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)

10.  Which numbers in the loop are:

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.

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
e.  / × / -6 / = / -30

(5 marks)

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)

16.  Which is the cheaper option, A or B ?

Option A / Option B
James buys 3 bottles of water.
Each bottle contains 1 litre.
The price of 1 bottle is €1.20 / Monika buys 2 bottles of water.
Each bottle contains 1.5 litres.
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)

18.  Find the angles marked with letters. Show your working and give reasons.

/ a=______°
Reason: ______
/ b=______°
Reason: ______
/ c=______°
Reason: ______
/ d=______°
Reason: ______
e=______°
Reason: ______
f=______°
Reason: ______
/ g=______°
Reason: ______
h=______°
Reason: ______

(10 marks)

Maths Form 4 Track 1 – 2015 Page 6 of 6