Review 2
BIDMAS
1.
At 9 am the temperature was 23C. By 2 pm the temperature had increased
by 8C. What was the temperature at 2 pm?
2.
The bill for a dinner for 8 people was Dh 300. What was the cost per person?
3.
A computer in 1998 cost Dh 5000. The cost of the computer in 1999
decreased by Dh 750. What is the cost of the computer in 1999?
4.
The cafeteria sold 276 lunch specials at Dh 8 each. How much money did the
cafeteria receive?
5.
Fuad earns Dh 9 800 per month. Ahmed earns Dh 850 per month more than
Fuad. How much does Ahmed earn per month?
6.
40 sweets are to be shared between 7 children.
(a)
How many sweets does each child get?
(b)
How many sweets are left over?
7.
Abdulla drove 540 kilometres on Monday. On Sunday he drove 680
kilometres. How many more kilometres did he drive on Sunday than on
Monday?
8.
In one month you spend Dh 786 on food, Dh 3545 on rent, Dh 216 on
telephone calls, and Dh 387 on electricity. Estimate the total costs for the
month.
9.
A parking lot has 16 rows of parking spaces. Each row has 23 spaces.
Approximately how many cars can be parked in the car park?
10.
A college takes 176 students and 12 teachers on a trip by bus. Each bus
holds 30 passengers. How many buses are needed?
11.
Which of the numbers:
-15 , 5.6 ,
5
, 0 , -3.7 , -5.6 , 18
9
(a)
are integers?
(b)
are positive numbers?
(c)
are negative numbers?
(d)
are positive integers?
12.
Write these numbers in ascending order:
-5 -3.6 -4.2 -5.3 3.5 -2.3
13.
Write these numbers in descending order:
-4.6 -4.59 -4.03 -4.2 -4.165
M070 FWC lv review 2
14.
15.
Use the symbols < , > or = to complete the following:
(a)
5.58 ____ 5.286
(c)
-3.76 _____ -3.54
20.
From -12C to -5C
6(4 – 2(-3))  (-12) + 7
(b)
15(3  5)  4(3  14)
2(33  45)  13
3.5 squared
(b)
7.2 cubed
(-0.7)5
(c)
Evaluate, rounding your answer to the number of decimal places indicated.
(a)
19.
(b)
Evaluate
(a)
18.
From -4C to -9C
Evaluate:
(a)
17.
24.90 ____ 24.9
Find the change in temperature for each of the following. Is each a rise or a
fall?
(a)
16.
(b)
8.3-3
(3 d.p.)
(b)
1.95-4 (2 d.p.)
Evaluate
(a)
(7 – 3 x 4)3 – 4(16  4 – 6)4
(c)
08
(d)
13  0
(b)
(e)
(12  7)2  3(8  5)3
8 2  5( 4  2) 4
(14 – 6)  (52 – 25)
Evaluate the following, if possible.
(a)
324
(b)
5
 1024
(c)
4
 1296
V
21.
The current I amperes in an a.c. circuit is given by I 
22.
The annual rate of interest R is given by the formula R  N N E  1  1 . Find R
for N = 12, E = 0.035. Express your answer to 4 d.p.
23.
Write these numbers in decimal form.
R2  X 2
V = 210, R = 8.9 and X = 11.7. Write your answer to 3 d.p.

(a)
105
M070 FWC lv review 2
(b)
10-4
. Find I when

24.
25.
Write these numbers as ordinary numbers in decimal form.
(a)
4.013 x 104
(b)
8.13 x 10-2
(c)
1.0654 x 103
(d)
1.65 x 10-5
Calculate and write your answer as an ordinary number in decimal form.
(a)
345 800 000 x 154 700
(b)
0.000 085 x 0.000 006 5
26.
It costs Dh 525 for 21 books. How much does each book cost?
27.
A trip costs Dh 13 500. The cost is to be shared by 6 people. How much will
they each pay?
28.
Amira earns Dh 78 000 per year. What is her monthly salary?
29.
Ali makes deposits to his account of Dh 345, Dh 56.50 and Dh 3867. He also
writes cheques for Dh 62 and Dh 813. His initial balance was Dh 7154. What
is the new balance of his account?
30.
How many stamps each costing Dh 3 can be bought for Dh 20?
31.
A piece of wire 655 metres long is cut into 20 pieces of equal length. How
long is each piece?
32.
Sharifa buys a stereo for Dh 1475. She gives a deposit of Dh 750. How
much does she still owe?
33.
Shamsah is putting photographs from her trip to Germany in an album. She
can fit 6 photographs on each page. She has 50 photographs. How many
pages does she need?
34.
A man worked for 35 hours and was paid a total of Dh 2300. How much was
he paid per hour (to the nearest dirham)?
35.
A pile of 14 identical boxes is 5.2 metres high. How high is each box (to the
nearest hundredth of a metre)?
36.
A bookshop bought 500 copies of a book. It sold 135 in week one, 175 in
week two and 95 in week three. How many books were left after week three?
37.
How much change will I get from a Dh 500 note, after buying three CDs at
Dh 55 each, two books at Dh 75 each a calculator for Dh 65?
38.
Mariam pays a deposit of Dh 250 on a stereo and pays 12 monthly payments
of Dh 75 each. What is the total cost of the stereo?
39.
A play was attended by 250 adults each paying Dh 95 and 85 children each
paying Dh 50. How much money was paid altogether?
M070 FWC lv review 2
Review 2 Answers
1.
31C
5.
2.
Dh 37.50
3.
Dh 10 650
6.
(a)
5 sweets
7.
140 kilometres
8.
Dh 4900
11.
(a)
(b)
5.6 ,
12.
-5.3 , -5 , -4.2 , -3.6 , -2.3 , 3.5
14.
(a)
>
15.
(a)
17.
-15, 0, 18
(b)
9.
Dh 2208
5 sweets
400 cars
5
, 18
9
(c)
13.
4.
10.
-15, -3.7, -5.6
7 buses
(d)
(c)
5C , fall
(b)
7C, rise
16.
(a)
(a)
12.25
(b)
373.248
(c)
-0.168 07
18.
(a)
0.002
(b)
0.07
19.
(a)
-189
(b)
3.5
20.
(a)
18
(b)
-4
21.
14.285
24.
(a)
40 130
25.
(a)
53 495 260 000 000
26.
Dh 25
29.
Dh 10 547.50
32.
Dh 725
33.
9 pages
34.
Dh 66 per hour
35.
0.37 metres
36.
95 books
37.
Dh 120
38.
Dh 1150
39.
Dh 28 000
22.
27.
0.0345
(b)
<
(c)
23.
0.0813
(b)
Dh 2250
30.
18
-4.03 , -4.165 , -4.2 , -4.59 , -4.6
=
M070 FWC lv review 2
(b)
Dh 4250
2
(b)
2
 or undefined
0
(d) & (e)
(c)
not possible
(a)
100 000
(b)
0.000 1
(c)
1065.4
(d)
0.000 016 5
0.000 000 000 5525
28.
Dh 6500
6 stamps
31.
32.75 metres