1 a Find the value of the expression 3y + 2z , when y = 5 and z = 2.
______(1 mark)
p2
b If s = , find the value of s when p = -4 and q = 8.
q
______(2 marks)
9C
2 Use the formula F = 32 to convert 10° C into Fahrenheit.
5
____________ ° F (2marks)
3 Simplify each of these expressions.
a) 2p×3q
____________ (1)
b) c × a × a2 × c
____________ (1)
c) 2n(n2+3n)
____________ (1)
d) 4(x + 3)
____________ (1)
e) x(x + 3)
____________ (1)
f) 8(x – 4) – 2(3x + 6)
____________ (2)
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g) 3a(2a + 4b) - 4a(a − 7b)
____________ (2)
h) 4x + y + 4y – x
____________ (1)
i) r2 + 5r + 3r2 − 2r
____________ (1)
j) −2p + 5q − p + q
____________ (1)
12m5
k)
3m
____________ (2)
6x 4
l)
2
____________ (2)
4 Pens cost x pence each. Rulers cost y pence each.
Hassan buys 3 pens and 2 rulers. The shopkeeper charges him T pence.
Find an expression for T
____________ (1 mark)
5 Factorise these expressions.
a 3d + 12
_____________ (1 mark)
b 24𝑓 3 − 16𝑓 2 g
_____________ (1 mark)
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6 The height of a bean plant is h cm after it has been growing for d days.
a Use the formula h = 10 + 2d.
to find the height of the plant after 5 days
_____________ (1 mark)
b What is the height of the plant after two weeks?
_____________ (1 mark)
7 A bag of sugar has a mass of 2 kg.
a Write down an expression in terms of n for the total mass in kilograms of n bags of
sugar.
_____________ kg
b Write down an expression in terms of n for the total mass in grams of n bags of sugar.
_____________ g
(2 marks)
8 Write these sentences using algebraic notation
a I think of a number ,multiply by 2 then subtract 6 _________ ( 1 )
b I think of a number add 8 then multiply by 4 _________ ( 1 )
c Multiply n by 4, then add 8. Divide the whole expression by 2 _________ ( 1 )
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9 Find the perimeter of the below shape. Write your answer as simply as possible.
______(2 marks)
10 The diagram shows a rectangle with length (3d + 2) cm and width (d + 5) cm.
a Write an expression for the perimeter of the rectangle and simplify.
_____________(2)
b Write an expression for the area of the rectangle.
_____________ (1)
(3 marks)
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