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<strong>Inspire</strong> <strong>Maths</strong><br />
<strong>and</strong> <strong>SATs</strong><br />
How can <strong>Inspire</strong> <strong>Maths</strong> help<br />
you <strong>and</strong> your Year 6 pupils<br />
prepare for <strong>SATs</strong>?<br />
1
Introduction<br />
How can <strong>Inspire</strong> <strong>Maths</strong> help you <strong>and</strong><br />
your Year 6 pupils prepare for Key<br />
Stage 2 <strong>SATs</strong>?<br />
We have selected a number of questions from the 2016<br />
KS2 <strong>SATs</strong> papers <strong>and</strong> highlighted relevant pages from<br />
the <strong>Inspire</strong> <strong>Maths</strong> Pupil Textbooks which will help your<br />
Year 6 pupils to answer these questions.<br />
Pupils following the <strong>Inspire</strong> <strong>Maths</strong> programme will build<br />
<strong>and</strong> consolidate knowledge <strong>and</strong> underst<strong>and</strong>ing year<br />
on year. <strong>Inspire</strong> <strong>Maths</strong> will give them the mathematical<br />
language, deep underst<strong>and</strong>ing <strong>and</strong> confidence so they<br />
are fully prepared for <strong>SATs</strong>.<br />
View some example <strong>SATs</strong> questions <strong>and</strong> the practice that <strong>Inspire</strong> <strong>Maths</strong> can provide
Paper 1:<br />
10 879 × 3 =<br />
Arithmetic<br />
11 71 × 8 =<br />
1 mark<br />
Let’s Learn!<br />
Multiplication Unit 6<br />
Multiplication with regrouping in ones, tens <strong>and</strong> hundreds<br />
1 68 × 2 = ?<br />
Hundreds<br />
Tens<br />
Ones<br />
First multiply the ones by 2.<br />
6 8<br />
× 2<br />
6<br />
1<br />
Hundreds<br />
Tens<br />
Ones<br />
8 ones × 2 = 16 ones<br />
Regroup the ones:<br />
16 ones = 1 ten 6 ones<br />
12 50 × 70 =<br />
1 mark<br />
Hundreds<br />
Tens<br />
Ones<br />
Then multiply the tens by 2.<br />
6 8<br />
× 2<br />
1 3 6<br />
Curriculum objective:<br />
Write <strong>and</strong> calculate mathematical statements for<br />
multiplication <strong>and</strong> division using the multiplication<br />
tables that they know, including for two-digit<br />
1 mark<br />
numbers times one-digit numbers, using mental <strong>and</strong><br />
progressing to formal written methods.<br />
Hundreds<br />
Tens<br />
Ones<br />
1<br />
6 tens × 2 = 12 tens<br />
Add the tens:<br />
12 tens + 1 ten = 13 tens<br />
Regroup the tens:<br />
13 tens = 1 hundred 3 tens<br />
68 × 2 = 136<br />
83<br />
E00060A0720<br />
Page 7 of 20<br />
(M)UKIMPB3A_U06.indd 83<br />
Pupil Textbook 3A, Unit 6, Multiplication (page 83)<br />
1/26/15 3:24 PM<br />
*<br />
All questions were taken from the 2016 Key Stage 2 national test papers<br />
More examples
Paper 1:<br />
19 3 2 + 10 =<br />
Arithmetic<br />
1 mark<br />
Let’s Learn!<br />
Dividing by tens, hundreds <strong>and</strong> thous<strong>and</strong>s<br />
Dividing by 10<br />
Decimals Unit 7<br />
1 a Starting from 1, Peter takes 10 equal steps backwards on the number<br />
line <strong>and</strong> l<strong>and</strong>s on the point 0. What is the length of each step?<br />
20 0.9 ÷ 10 =<br />
0 1<br />
? ? ? ? ? ? ? ? ? ?<br />
1 ÷ 10 = 1 × 1<br />
10<br />
1<br />
=<br />
10<br />
= 0·1<br />
The length of each step is 0·1.<br />
1 mark<br />
b<br />
Starting from 0·1, Ruby takes 10 equal steps backwards on the number<br />
line <strong>and</strong> l<strong>and</strong>s on the point 0. What is the length of each step?<br />
21 4 − 1.15 =<br />
Curriculum objective:<br />
Identify the value of each digit in numbers given<br />
to three decimal places <strong>and</strong> multiply <strong>and</strong> divide<br />
numbers by 10, 100 <strong>and</strong> 1000 giving answers up to<br />
1 mark<br />
three decimal places.<br />
Page 10 of 20<br />
E00060A01020<br />
0 0·1<br />
? ? ? ? ? ? ? ? ? ?<br />
0·1 ÷ 10 = 1<br />
10 ÷ 10<br />
= 1<br />
10 × 1<br />
10<br />
1<br />
=<br />
100<br />
= 0·01<br />
The length of each step is 0·01.<br />
15<br />
(M)UKINPB5B_U07.indd 15<br />
Pupil Textbook 5B, Unit 7, Decimals (page 15)<br />
18/6/15 12:31 pm<br />
*<br />
All questions were taken from the 2016 Key Stage 2 national test papers<br />
More examples
Paper 1:<br />
Arithmetic<br />
24<br />
4<br />
7 + 5 7 = 1 mark<br />
Unit 12 Fractions<br />
Let’s Learn!<br />
Adding <strong>and</strong> subtracting like fractions<br />
1 Ella eats 1 of a pizza.<br />
5<br />
Tai eats 3 of it.<br />
5<br />
What fraction of the pizza do<br />
they eat altogether?<br />
1<br />
5 <strong>and</strong> 3 are like fractions.<br />
5<br />
This number is the same.<br />
1<br />
5<br />
3<br />
5<br />
25 20% of 1,800 =<br />
Curriculum objective:<br />
Add <strong>and</strong> subtract fractions with the<br />
same denominator.<br />
50<br />
1<br />
3<br />
5<br />
5<br />
1<br />
5 + 3 5<br />
= 1 fi fth + 3 fi fths<br />
= 4 fi fths<br />
4<br />
5<br />
1<br />
5 + 3 5 = 4 5<br />
They eat 4 5 of the pizza altogether.<br />
1 mark<br />
(M)UKinsPB2B_U12.indd 50<br />
Pupil Textbook 2B, Unit 12, Fractions (page 50)<br />
11/28/14 8:58 AM<br />
*<br />
All questions 26 were 15 taken × 6.1 from = the 2016 Key Stage 2 national test papers<br />
More examples
Paper 1:<br />
Arithmetic<br />
Let’s Learn!<br />
Percentage of a quantity<br />
Percentage Unit 10<br />
1 There were 400 seats on an aeroplane. 60% of the seats were in economy<br />
class. How many seats were in economy class?<br />
Method 1<br />
400 seats<br />
29 15% × 440 =<br />
60% (? seats)<br />
100% 400 seats<br />
400<br />
1%<br />
100 = 4 seats<br />
60% 60 × 4 = 240 seats<br />
There were 240 seats in economy class.<br />
100% of the seats is the<br />
total number of seats.<br />
30<br />
6 5 7 4<br />
× 3 1<br />
Curriculum objective:<br />
Solve problems involving the calculation of<br />
Show<br />
percentages [for example, of measures, <strong>and</strong> such<br />
your<br />
method<br />
as 15% of 360] <strong>and</strong> the use of percentages for<br />
comparison.<br />
1 mark<br />
2 marks<br />
Method 2<br />
60% of seats = 60% of 400<br />
= 60<br />
100 × 400<br />
= 60 × 4<br />
= 240<br />
There were 240 seats in economy class.<br />
77<br />
(M)UKINPB5B_U10.indd 77<br />
Pupil Textbook 5B, Unit 10, Percentage (page 77)<br />
18/6/15 4:16 pm<br />
*<br />
All questions were taken from the 2016 Key Stage 2 national test papers<br />
Paper 2: Reasoning<br />
examples
Paper 2:<br />
Reasoning<br />
Put On Your Thinking Caps!<br />
5<br />
Addition <strong>and</strong> Subtraction within 1000 Unit 2<br />
Find the missing<br />
number in each box.<br />
3<br />
Write the three missing digits to make this addition correct.<br />
1 1 1<br />
4 3 2<br />
1 2<br />
1 5<br />
+<br />
3 3 3<br />
+ 4 6<br />
8 8 8<br />
+ 3 4 5<br />
4 6 8<br />
+ 4 4<br />
1 5<br />
2 marks<br />
6 5 4<br />
– 1<br />
– 4 4 4<br />
– 2 4<br />
8 8<br />
4 4 4<br />
4 2 0<br />
Curriculum objective:<br />
Add <strong>and</strong> subtract numbers with up to three digits,<br />
using formal written methods of columnar addition<br />
<strong>and</strong> subtraction.<br />
Practice Book 2A, p.57<br />
59<br />
(M)UKIMPB2A_U02.indd 59<br />
Pupil Textbook 2A, Unit 2, Addition <strong>and</strong> Subtraction within 1000<br />
(page 59)<br />
11/25/14 5:47 PM<br />
*<br />
All questions were taken from the 2016 Key Stage 2 national test papers<br />
More examples
Paper 2:<br />
Reasoning<br />
Unit 13 Symmetry<br />
5 Each shape below is half of a symmetrical shape. Copy them onto square<br />
grid paper. Then complete each symmetrical shape using the dotted line<br />
as a line of symmetry.<br />
a<br />
b<br />
6<br />
This diagram shows a shaded shape inside a border of squares.<br />
Draw the reflection of the shape in the mirror line.<br />
Use a ruler.<br />
c<br />
d<br />
mirror line<br />
1 mark<br />
Curriculum objective:<br />
Complete a simple symmetric figure with respect to<br />
a specific line of symmetry.<br />
130<br />
E00070A0924 Page 9 of 24<br />
(M)UKIMPB4B_U13.indd 130<br />
Pupil Textbook 4B, Unit 13, Symmetry (page 130)<br />
23/3/15 1:25 pm<br />
*<br />
All questions were taken from the 2016 Key Stage 2 national test papers<br />
More examples
Paper 2:<br />
Reasoning<br />
Unit 14 Fractions<br />
Let’s Learn!<br />
More equivalent fractions: short cut<br />
1<br />
2<br />
3<br />
4<br />
6<br />
2<br />
3<br />
= 4 6<br />
6<br />
= 9<br />
=<br />
8<br />
12<br />
7<br />
Write the two missing values to make these equivalent fractions correct.<br />
6<br />
9<br />
8<br />
12<br />
8<br />
=<br />
3 12<br />
=<br />
4<br />
1 mark<br />
1 mark<br />
There is a short cut!<br />
To fi nd an equivalent fraction,<br />
multiply the numerator <strong>and</strong> the<br />
denominator by the same number.<br />
x × 2<br />
x × 3<br />
2<br />
3<br />
=<br />
4<br />
6<br />
2<br />
3<br />
=<br />
6<br />
9<br />
× x 2<br />
x × 3<br />
Curriculum objective:<br />
Use common factors to simplify fractions; use<br />
common 8 Circle multiples two numbers that to add express together to equal fractions 0.25 in the same<br />
denomination.<br />
72<br />
To get 8 , we multiply<br />
12<br />
the numerator <strong>and</strong><br />
denominator of 2 3 by .<br />
0.05 0.23 0.2 0.5<br />
1 mark<br />
(M)UKINPB3B_U14N.indd 72<br />
Pupil Textbook 3B, Unit 14, Fractions (page 72)<br />
28/1/15 2:29 pm<br />
*<br />
All questions were taken from the 2016 Key Stage 2 national test papers<br />
More examples
Paper 2:<br />
Reasoning<br />
12 n = 22<br />
What is 2n + 9?<br />
Let’s Learn!<br />
Word problems<br />
3y – y = 2y<br />
Algebra Unit 1<br />
1 Matt has y computer games. Anna has 3 times as many computer games<br />
as Matt. Anna buys another 7 computer games.<br />
a<br />
b<br />
a<br />
How many more computer games does Anna have than Matt after<br />
she buys another 7 computer games, in terms of y ?<br />
If Matt has 25 computer games, how many more computer games<br />
does Anna have than Matt?<br />
Anna has (3y + 7) computer games.<br />
3y + 7 – y = 2y + 7<br />
Anna has (2y + 7) more computer games than Matt.<br />
1 mark<br />
b 2y + 7 = (2 × 25) + 7<br />
= 50 + 7<br />
= 57<br />
2q + 4 = 100<br />
Work out the value of q.<br />
q =<br />
Curriculum objective:<br />
Use simple formulae.<br />
1 mark<br />
Anna has 57 more computer games than Matt.<br />
2 Sophie has £m <strong>and</strong> Ahmed has £15 more.<br />
a Find the amount of money they have altogether in terms of m.<br />
b If Sophie has £75, how much money do they have altogether?<br />
a Ahmed has £ ( ).<br />
They have £ ( ) altogether.<br />
b If m = 75, they have £ altogether.<br />
National Curriculum<br />
Activity 6.9, found on<br />
<strong>Inspire</strong> <strong>Maths</strong> Online, is<br />
also useful for this activity.<br />
19<br />
(M)UKIMPB6A_U01.indd 19<br />
Pupil Textbook 6A, Unit 1, Algebra (page 19)<br />
6/26/15 8:53 AM<br />
*<br />
All questions were taken from the 2016 Key Stage 2 national test papers<br />
More examples
Paper 2:<br />
Reasoning<br />
Unit 11 Angles<br />
Let’s Learn!<br />
Vertically opposite angles<br />
1 EF <strong>and</strong> GH are two straight lines which cross each other.<br />
∠a <strong>and</strong> ∠c are called vertically opposite angles.<br />
∠b <strong>and</strong> ∠d are also called vertically opposite angles.<br />
17<br />
Calculate the size of angles a <strong>and</strong> b in this diagram.<br />
<br />
a<br />
b<br />
Not<br />
to<br />
scale<br />
a = °<br />
1 mark<br />
The fact that angles<br />
in a quadrilateral<br />
add up to 360° is<br />
covered in National<br />
Curriculum Activity<br />
6.16 found on<br />
<strong>Inspire</strong> <strong>Maths</strong><br />
Online.<br />
∠a + ∠b = 180°<br />
∠b + ∠c = 180°<br />
∠a + ∠b = ∠b + ∠c<br />
So ∠a = ∠c.<br />
E<br />
G<br />
b<br />
a<br />
c<br />
d<br />
∠a <strong>and</strong> ∠b are angles on a straight line.<br />
∠b <strong>and</strong> ∠c are also angles on a straight line.<br />
H<br />
F<br />
b = °<br />
18 Write the missing number.<br />
Curriculum objective:<br />
70 ÷ = 3.5<br />
1 mark<br />
Find unknown angles in any triangles, quadrilaterals,<br />
<strong>and</strong> regular polygons. Recognise angles where they<br />
meet at a point, are on a straight line, or are vertically<br />
opposite, <strong>and</strong> find missing angles.<br />
1 mark<br />
102<br />
∠a + ∠b = 180°<br />
∠a + ∠d = 180°<br />
∠a + ∠b = ∠a + ∠d<br />
So ∠b = ∠d.<br />
∠a <strong>and</strong> ∠d are also<br />
angles on a straight line.<br />
Vertically opposite angles are equal.<br />
(M)UKINPB5B_U11.indd 102<br />
E00070A01924 Pupil Textbook 5B, Unit 11, Angles (page 102)<br />
Page 19 of 24<br />
6/19/15 5:59 PM<br />
*<br />
All questions were taken from the 2016 Key Stage 2 national test papers<br />
Paper 3: Reasoning<br />
examples
Paper 3:<br />
Reasoning<br />
National Curriculum Activity<br />
6.9, available on <strong>Inspire</strong> <strong>Maths</strong><br />
Online, also covers formulae.<br />
2n <strong>and</strong> 3n are examples of algebraic expressions in terms of n.<br />
Algebra Unit 1<br />
This example question also requires division by a<br />
1-digit number, shown in Pupil Textbook 4A. The<br />
skills required to answer this question are built<br />
up from <strong>Inspire</strong> <strong>Maths</strong> 1, as these challenging<br />
problems in Pupil Assessment Book 1 show:<br />
Challenging Problems 1<br />
Date:<br />
4<br />
Each shape st<strong>and</strong>s for a number.<br />
3n is 3 × n or<br />
3 groups of n.<br />
1 × n or n × 1<br />
is equal to n.<br />
12p is 12 × p<br />
or p × 12.<br />
1 Write the numbers 1 to 6 in the circles.<br />
The numbers along each side must add up to 10.<br />
You can use each number only once.<br />
Total 100<br />
12 Answer these questions.<br />
a 4k = ×<br />
Total<br />
96<br />
b 7j = ×<br />
c 5p means groups of .<br />
d 8 groups of x is × .<br />
2 What numbers do t <strong>and</strong> ♥ st<strong>and</strong> for?<br />
Work out the value of each shape.<br />
=<br />
=<br />
1 mark<br />
1 mark<br />
13 Refer to the table below. There are n marbles in a packet. Find the number of<br />
marbles in terms of n. Then fi nd the number of marbles for the given values<br />
of n.<br />
Number of Number of Number of Marbles When:<br />
Packets Marbles n = 15 n = 20<br />
1 n 15 20<br />
4 4n 4 × 15 = 60<br />
3<br />
♥<br />
t<br />
♥<br />
9<br />
7<br />
10<br />
t =<br />
Curriculum objective:<br />
Use simple formulae.<br />
(M)UKIMPB6A_U01.indd 7<br />
15<br />
Pupil Textbook 6A, Unit 1, Algebra (page 7)<br />
7<br />
6/29/15 4:03 PM<br />
05(M)UKIMPAB1_CP1.indd 15<br />
♥ =<br />
Challenging Problems 1<br />
15<br />
12/2/14 10:39 AM<br />
E00080A0724<br />
Page 7 of 24<br />
*<br />
All questions were taken from the 2016 Key Stage 2 national test papers<br />
More examples
Paper 3:<br />
Reasoning<br />
Decimals (2) Unit 10<br />
4 A coat costs £66·45. A jumper costs £28·65. Ruby's dad has £75.<br />
How much more money does he need to buy the coat <strong>and</strong> the jumper?<br />
£ + £ = £<br />
The total cost of the coat <strong>and</strong> the jumper is £ .<br />
£<br />
6<br />
Jacob cuts 4 metres of ribbon into three pieces.<br />
Coat <strong>and</strong> jumper<br />
?<br />
The length of the first piece is 1.28 metres.<br />
Ruby's dad<br />
The length of the second piece is 1.65 metres.<br />
£75<br />
Work out the length of the third piece.<br />
£ – £ = £<br />
He needs £<br />
more to buy the coat <strong>and</strong> the jumper.<br />
Show<br />
your<br />
method<br />
metres<br />
5 A piece of material 4 m long is cut into two pieces. The first piece is<br />
1·25 m long. How much longer is the second piece of material?<br />
m<br />
? m<br />
2 marks<br />
1st piece<br />
2nd piece<br />
m<br />
Curriculum objective:<br />
Solve simple measure <strong>and</strong> money problems<br />
involving fractions <strong>and</strong> decimals to two<br />
decimal places.<br />
? m<br />
m – m = m<br />
The length of the second piece is m.<br />
m – m = m<br />
The second piece is m longer than the first piece.<br />
59<br />
(M)UKIMPB4B_U10(57-64).indd 59<br />
Pupil Textbook 4B, Unit 10, Decimals (2) (page 59)<br />
3/23/15 4:58 PM<br />
*<br />
All questions were taken from the 2016 Key Stage 2 national test papers<br />
E00080A0924<br />
Page 9 of 24<br />
More examples
Paper 3:<br />
Reasoning<br />
Unit 14 Volume of Cubes <strong>and</strong> Cuboids<br />
4 These solids are made up of unit cubes.<br />
What is the volume of each solid?<br />
a<br />
b<br />
10 Emma makes a cuboid using 12 cubes.<br />
Volume = cubic units Volume = cubic units<br />
c<br />
d<br />
Write the letter of the cuboid that has a different volume from<br />
Emma’s cuboid.<br />
Volume of cube<br />
Volume of cuboid<br />
= cubic units = cubic units<br />
B<br />
A<br />
C<br />
5 This is a 1 cm cube.<br />
Each edge of the cube is 1 cm long.<br />
The volume of the cube is<br />
1 cubic centimetre (cm 3 ).<br />
The cubic centimetre<br />
(cm 3 ) is a unit of<br />
measurement for volume.<br />
D<br />
E<br />
1 cm<br />
Page 13 of 24<br />
1 mark<br />
Curriculum objective:<br />
E00080A01324<br />
Estimate volume [e.g. using 1cm 3 blocks to build cuboids<br />
(including cubes)] <strong>and</strong> capacity [e.g. using water].<br />
166<br />
1 cm 1 cm<br />
(M)UKINPB5B_U14.indd 166<br />
18/6/15 2:09 pm<br />
Pupil Textbook 5B, Unit 14, Volume of Cubes <strong>and</strong> Cuboids (page 166)<br />
*<br />
All questions were taken from the 2016 Key Stage 2 national test papers<br />
More examples
Paper 3:<br />
Reasoning<br />
11 A toy shop orders 11 boxes of marbles.<br />
Show<br />
your<br />
method<br />
Each box contains 6 bags of marbles.<br />
Each bag contains 45 marbles.<br />
How many marbles does the shop order in total?<br />
marbles<br />
Curriculum objective:<br />
2 marks<br />
Multiply multi-digit numbers up to 4 digits by<br />
a two-digit whole number using the formal<br />
written method of long multiplication.<br />
68<br />
68<br />
b<br />
b<br />
5 times<br />
12 bags<br />
12 bags<br />
Miss Thompson<br />
127 kg<br />
each<br />
each<br />
drinks<br />
Mr Brown<br />
860 ml<br />
8 A gardener packs 4568 seeds equally into 9 packets. He packs the<br />
greatest possible number of seeds equally <strong>and</strong> plants any remaining<br />
7 A shopkeeper buys 1257 tins of paint. Each tin holds 7 of paint.<br />
seeds in his own garden.<br />
If he sells 620 tins, how much paint does he have left? Give your answer<br />
a in litres. How many seeds are there in each packet?<br />
b How many seeds does he plant?<br />
8 A gardener packs 4568 seeds equally into 9 packets. He packs the<br />
c If he sells 7 packets, how many seeds does he have left?<br />
greatest possible number of seeds equally <strong>and</strong> plants any remaining<br />
seeds in his own garden.<br />
9 Jack, Tai <strong>and</strong> Millie sell some raffl e tickets for charity. Jack sells 125 tickets.<br />
a Tai sells How 14 many times seeds as many are tickets there in as each Jack. packet? Millie sells half as many tickets<br />
b as Tai. How How many many seeds tickets does they plant? sell altogether?<br />
c If he sells 7 packets, how many seeds does he have left?<br />
Pupil Textbook 4A, Unit 3, Whole Numbers (page 68)<br />
9 Jack, Tai <strong>and</strong> Millie sell some raffl e tickets for charity. Jack sells 125 tickets.<br />
Tai sells 14 times as many tickets as Jack. Millie sells half as many tickets<br />
as Tai. How many tickets do they sell altogether?<br />
bag<br />
total mass<br />
bag<br />
mass<br />
7 A shopkeeper buys 1257 tins of paint. Each tin holds 7 of paint.<br />
If he sells 620 tins, how much 127 kgpaint does he have left? Give your answer<br />
in litres.<br />
(M)UKINPB4A_U03.indd 68<br />
total mass<br />
mass<br />
3/26/15 12:09 PM<br />
Page 14 of 24<br />
E00080A01424<br />
(M)UKINPB4A_U03.indd 68<br />
3/26/15 12:09 PM<br />
*<br />
All questions were taken from the 2016 Key Stage 2 national test papers<br />
More examples
Paper 3:<br />
Reasoning<br />
17<br />
Here are five triangles on a square grid.<br />
Unit<br />
5<br />
Let’s Learn!<br />
Area of a Triangle<br />
Unit 5 Area of a Triangle<br />
2 What is the area of triangle ABC?<br />
1 cm<br />
F<br />
A<br />
1 cm<br />
E<br />
A<br />
Base <strong>and</strong> height of a triangle<br />
C<br />
B<br />
D<br />
E<br />
1 ABC is a triangle.<br />
A<br />
B<br />
The three sides are AB, BC <strong>and</strong> CA.<br />
C<br />
Let’s recall<br />
the parts of<br />
a triangle. It has three<br />
sides <strong>and</strong> three angles.<br />
B<br />
In triangle ABC, the base BC = 6 cm <strong>and</strong> the height AD = 4 cm.<br />
D<br />
Area of triangle ABC = area of triangle ABD + area of triangle ADC<br />
Area of triangle ABD = 1 × area of rectangle FBDA<br />
2<br />
= 1 2 × 2 × 4<br />
= 4 cm 2<br />
C<br />
2 In triangle ABC:<br />
A<br />
A<br />
A<br />
Area of triangle ADC = 1 × area of rectangle ADCE<br />
2<br />
= 1 2 × 4 × 4<br />
Four of the triangles have the same area.<br />
Which triangle has a different area?<br />
Curriculum objective:<br />
1 mark<br />
B<br />
height<br />
D<br />
base<br />
C<br />
AD is perpendicular<br />
to BC. BC is called<br />
the base <strong>and</strong> AD is<br />
called the height.<br />
B<br />
height<br />
E<br />
base<br />
C<br />
BE is perpendicular<br />
to AC. In this case,<br />
AC is the base <strong>and</strong><br />
BE is the height.<br />
base<br />
F<br />
B<br />
height<br />
CF is perpendicular<br />
to AB. In this case,<br />
AB is the base <strong>and</strong><br />
CF is the height.<br />
C<br />
133<br />
138<br />
= 8 cm 2<br />
So area of triangle ABC = 4 + 8<br />
= 12 cm 2<br />
Now area of rectangle FBCE = 6 × 4<br />
= 24 cm 2<br />
Half of its area = 12 cm 2<br />
So area of triangle ABC = 1 × area of rectangle FBCE<br />
2<br />
= 1 2 × 6 × 4<br />
= 1 × base BC × height AD<br />
2<br />
The lengths 6 cm <strong>and</strong><br />
4 cm of rectangle FBCE<br />
are the base <strong>and</strong> height<br />
of triangle ABC.<br />
Triangle ABC is half<br />
of rectangle FBCE.<br />
Calculate the area of<br />
parallelograms <strong>and</strong> triangles.<br />
(M)UKINPB5A_U05.indd 133<br />
Pupil Textbook 5A, Unit 5, Area of a Triangle<br />
(page 133)<br />
6/18/15 1:08 PM<br />
(M)UKINPB5A_U05.indd 138<br />
6/18/15 1:08 PM<br />
Pupil Textbook 5A, Unit 5, Area of a Triangle<br />
(page 137)<br />
E00080A01924<br />
Page 19 of 24<br />
*<br />
All questions were taken from the 2016 Key Stage 2 national test papers
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