Exam style questions - Hodder Plus Home

Exam questions: Unit A
Now try these exam questions
1 Sunita checks her bank balance. It is −£43.75.
She pays £100 into this account, then uses her
account to pay a phone bill of £15.32.
What is her bank balance after this [2]
2 Robert is buying presents for his friends.
He buys 6 DVDs at £5.59 each and 9 CDs at 3.49
each.
He pays with 7 £10 notes. How much change
should he get [3]
3 Work out these.
a 0.3 × 40 b 0.1 × 0.1 [2]
4 a Work out these.
i 0.36 × 1000 ii 0.45 × 100
iii 45.6 ÷ 1000 iv 8563 ÷ 10 000 [4]
b A school orders 1000 pens. Each one costs £0.32.
Find the total cost. [1]
5 Where possible, match a fraction with its
equivalent decimal.
One has been done for you.
5
100
1
4
1
50
1
2
13
25
1
10
4
20
2
5
5 Formulae
Here is an exam question …
a K = 5p − 8. Find K when p = 3. [2]
b L = 3q + 2r. Find L when q = 4 and r = 5. [2]
… and its solution
a K = 5 × 3 − 8
= 7
b L = 3 × 4 + 2 × 5
= 12 + 10
= 22
0.1
0.2
0.25
0.5
0.52
[4]
Here is another exam question …
The diagram shows an isosceles triangle whose base is f
and whose other two sides are g.
g
f
g
a Write a formula for the perimeter (p) in terms of
f and g. [1]
b Work out the value of p when f = 1.7 m and
g = 2.4 m. [2]
… and its solution
a p = f + 2g
b p = 1.7 + 2 × 2.4 = 1.7 + 4.8
= 6.5 m
Now try these exam questions
1 A single textbook costs £9.
Write down a formula for the cost, £C, of n
textbooks. [1]
2 For the formula F = 7x + 5, work out the value
of F when
a x = 2. [1]
b x = 5. [1]
3 If P = 8a + 3b, find P when
a a = 5 and b = 4 [2]
b a = 4 and b = 2.5 [2]
4 P and k are connected by the formula P = 20 + 4k.
Find the value of P when
a k = 2. [2]
b k = 5.5. [2]
More exam practice
1 For the formula G = 1 2 x − 3, work out the value
of G when
a x = 12. [1]
b x = 4. [1]
2 For the formula K = 25 − 7g, work out the value
of K when
a g = 3. [1]
b g = −2. [1]
3 For the formula H = 0.5a, work out the value of
H when
a a = 12. [1]
b a = 4. [1]
4 If Q = 7xy, find Q when
a x = 5 and y = 2. [1]
b x = 6 and y = 1.5. [1]
4 Revision Notes © Hodder Education 2011