2011
Secondary School
Examination
Papers
Secondary One Express
Mathematics
Paper 1 & 2
1
Admiralty Secondary School
SA2
2
Manjusri Secondary School
SA2
3
Ang Mo Kio Secondary School
SA2
4
Ping Yi Secondary School
SA2
5
Bukit Batok Secondary School
SA2
6
Bukit Merah Secondary School
SA2
7
Siglap Secondary School
SA2
8
Tanjong Katong Secondary School
SA2
9
Beatty Secondary School
SA2
10
Clementi Town Secondary School
SA2
11
Geylang Methodist Secondary School
SA2
12
Jurong West Secondary School
SA2
13
Shuqun Secondary School
SA2
14
Whitley Secondary School
SA2
15
Yuhua Secondary School
SA2
16
Northland Secondary School
SA2
17
Chung Cheng High School
SA2
I
NAME:
NO:
CLASS:
ADMIRAL
TY
SECONDARY SCHOOL
Admlfalty
1·
·1arc.
..
,..
.....
"""
,,
END
OF
YEAR
EXAMINATION 2011
II
SUBJECT
Mathematics
PAPER
1
LEVEL/STREAM
1
Express
DA TE
11
October
2011
TIME
:
0750 
0850
DURATION
:
1
h
Instructions to candidates:
1.
Write your name, class and index number.
2.
Answer
ALL
questions in
th
e spaces provided.
3.
Use
an
electronic calculator to evaluate explicit numerical expressions.
If
the
degree
of
accuracy
is
not specified in
the
question, and
if
the
answer
is not exact, give the answer to three significant figures.
Give answers in degrees to one decimal place. For
7r,
use
eit
h
er
your
ca
lculator value or
3.
142,
unless the quest
ion
requires the answer
in
terms
of
:ir.
4. Essential working must
be
shown. Omission
of
essential workings and
illegible handwriting will lead to loss
of
marks.
50
DO
NO
T TURN OVER T
HI
S PAGE UNTIL
YOU
AR
E
TO
LD
TO
DO
SO.
This
ques
tion paper consists
of!!
printed pages including this cover page.
1. Express the following
in
index notation, where all the bases are prime numbers.
~a)
81
x
156
(b)
22
x
440
2.
Express your answers in index notation.
(a)
Find the square
of
4
6
x
19
3
.
(b)
Find the
cube
root
of
the result in (a).
Answer:
(a)
...
.....
........
.
..
......
...
[4)
(b)
...............
............
[4)
Answer:
(a) .. .. .
....
... . . .. . .. . .. ... . .
[1]
(b)
···························
[2]
2
3.
Evaluate each
of
the
following.
(a)(

97)+
13x4
(b)
[SO

(28 
32))
x
6.
Answer:
(a)
............
:
..............
[2]
(b)
.....
... ..
........
.
.....
. ..
[2]
4.
The
price
of
a cake
of
radius
r
cm
and height
h
cm
is
given
by
the formula
I'=__!_
r
2
h.
25
(a)
Find the price
for
a cake
of
radius
35
cm
and height
of
11
cm.
(b)
If
the price
of
cake
is $240 and the height is
15
cm, calculate the radius
of
the cake.
Answer:
(a)$
.............
... .
.....
....
[2]
(b)
........................
cm
[3]
3
5. Expand and simplify
the
following.
(a)
3(2a
+4b)+5(ba),
(b)
6(ba)+4b,
c+
I
c  2
(c) 
+.
3
2
Answer:
(a) . . . . . . . . . . . . . . . . . . . . . . . . . . .
[2]
(b)
····
·····
···············
.. .
[2]
(
c)
. . . . . . . . . . . .. . . . . . . . . . . . . . .
[2)
6.
A pail was half filled with water. An amount
of
water equivalent to
_!_
of
the volume
of
4
the pail was poured out. Given that the remaining volume
of
water
in
the pail is
30
0 ml,
find
the
volume
of
the
pail.
Answer:
...........
...
..........
.....
ml
[2)
4
7.
Convert the following speed. Leave your answers in 3 significant figures.
(a)
223
km/h
to
mis,
(b)
16
m/s to km/h.
Answer:
(a) ..
....................
m
/s
[2]
(b)
...
.
....
....
........
.
km/h
[2]
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