Ks3 Mathematics Level 4 Answers - Mental Arithmetic Questions Page 2
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20Equations
24 – 12 = 12
Cards for fractions
Solve these equations.
Here are six number cards.
a + 12 = = = = 24
12
=
a
.........................
2
4
6
8
10
12
1 mark
b – 12 = = = = 24
X2
(a)
Choose two of these six cards to
36
=
b
.........................
1
2
101 mark
make a fraction that is equivalent to
3
4
6
24 + 12 = 36
OR
. Remember to multiply both the top
X2
12
1 mark
and bottom numbers by the same number
(b)
Choose two of these six cards to
make a fraction that is
1
Café
greater than
but less than 1
2
A café sells coffee and toast.
4
6
6
8
8
10
OR
OR
OR
OR
OR
6
8
10
10
12
12
1 cup of coffee
1 cup of coffee
1 mark
Placing fractions
Here are four fractions.
1 slice of toast
2 slices of toast
3
3
1
1
5
4
8
3
Cost £1.30
Cost £1.70
Look at the number line below. Write each fraction in the correct
box.
How much does 1 cup of coffee cost?
The only difference between the two is
0
0.5
1
second one has an extra piece of toast. So
the toast must cost £1.70 - £1.30 = 40p.
90
3
3
1
1
....................... p
So the coffee must cost £1.30 – 40p,
1 mark
5
4
8
3
which gives 90p.
2 marks
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