Unit 1 Examination-style questions
1
Use brackets to make the following statement correct.
− × + ÷ = .
2
The lowest recorded temperature in Alaska is −. °C.
The highest recorded temperature in Alaska is . °C.
Find the dierence between these temperatures.
3
Find the highest common factor (HCF) of and .
4
(a)
(b)
5
Write down the prime numbers between and .
6
–
Without using a calculator
, work out
Write as a product of prime factors.
Find the lowest common multiple (LCM) of and .
You must show all your working and give your answer as a mixed number
in its simplest form.
[]
7
Without using a calculator
, work out
÷
You must show all your working and give your answer as a mixed number
in its simplest form.
[]
Write the number . correct to decimal places,
Write the number . correct to signicant gures.
8
(a)
(b)
9
Write each number correct to signicant gure and estimate the value of
the calculation. You must show your working.
.
. + .
10
[]
Expand the brackets and simplify.
x
( −)−(x + )
11
Solve.
46
UNIT1
x
– =
[]
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0
