BLM 20 The contracted form of long division
Preferred multiples
r
1
21
2 6 8 9
These look the
same to me.
Contracted form
1 2 8 r
1
21
2 6 8 9
– 2 1 0 0 100
– 2 1
5 8 9
5 8
– 4 2 0 20
– 4 2
1 6 9
– 1 6 8
1 6 9
8
– 1 6 8
1 128
1
If the best choices are made when using preferred multiples
then the working looks like the contracted form.
The contracted form is like short
division with working shown below.
1 Use the contracted form to complete working below.
r
r
r
a
b
c
32
6 9 5
13
4 0 8 6
19
9 3 1 4
–
–
–
–
–
–
–
–
2 Use the contracted form of long division to do these on your own paper.
a b c
14
6 1 5 2
22
7 1 0 4
31
8 0 4 7
d e f
48
9 3 4 6
17
8 1 6 5
61
7 3 1 9
g h i
15
8 0 0 0
26
9 1 0 3
18
7 2 2 5
j k l
16
5 0 0 9
33
2 9 0 0
55
8 2 4 5 0
© Pearson Australia 2009. Original ISBN: 9780733965951. New Signpost Maths for Queensland Year 7 Teacher Support. BLM page.