1. Additive Subtraction Number Line
YUMI DEADLY CENTRE School of Curriculum
Enquiries:  
Number Line
Additive Subtraction
Restricted waiver of copyright
This work is subject to a restricted waiver of copyright to allow copies to be made for educational purposes only, subject to the following conditions:
All copies shall be made without alteration or abridgement and must retain acknowledgement of the copyright.
The work must not be copied for the purposes of sale or hire or otherwise be used to derive revenue.
The restricted waiver of copyright is not transferable and may be withdrawn if any of these conditions are breached.
YuMi Deadly Maths Past Project Resource

2. © 2007, 2013 QUT YuMi Deadly Centre
Number Line
Additive Subtraction
These are predominantly templates, giving one or two examples for each type of activity. They can be duplicated and used to work with students in developing and consolidating understanding of the relevant concepts.
HOW TO USE THIS MATERIAL:
Do not use this material in slide show, it will not work. Right click, and select “End Show” to exit slide show.
For further details of how to use this material, please refer to Basic Maths Booklet VB2: Mathematics behind Whole-Number Numeration and Operations.
© 2007, 2013 QUT YuMi Deadly Centre

3. © 2007, 2013 QUT YuMi Deadly Centre
Additive subtraction using sequencing Fill the distance with 10s then 1s
One example with answers
Two blank examples
© 2007, 2013 QUT YuMi Deadly Centre

4. © 2007, 2013 QUT YuMi Deadly Centre
= 159 12
Example
+10
+10
+10
+10
+10 +1 +1 +1 +1 +1 +1
147
159
+10 +1 +1
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
100
110
120
130
140
150
160
170
180
190
200
Position both numbers.
Fill the distance between the two numbers with red arcs (+10) and blue increments (+1).
Add up the arcs (+10) and increments (+1).
Type the answer in the box.
© 2007, 2013 QUT YuMi Deadly Centre

5. © 2007, 2013 QUT YuMi Deadly Centre
178
= 178
164
+10
+10
+10
+10
+10 +1 +1 +1 +1 +1 +1
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
100
110
120
130
140
150
160
170
180
190
200
Position both numbers.
Fill the distance between the two numbers with red arcs (+10) and blue increments (+1).
Add up the arcs (+10) and increments (+1).
Type the answer in the box.
© 2007, 2013 QUT YuMi Deadly Centre

6. © 2007, 2013 QUT YuMi Deadly Centre
194
= 194
171
+10
+10
+10
+10
+10 +1 +1 +1 +1 +1 +1
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
100
110
120
130
140
150
160
170
180
190
200
Position both numbers.
Fill the distance between the two numbers with red arcs (+10) and blue increments (+1).
Add up the arcs (+10) and increments (+1).
Type the answer in the box.
© 2007, 2013 QUT YuMi Deadly Centre

7. © 2007, 2013 QUT YuMi Deadly Centre
Additive subtraction using compensation Overfill the distance with 10s then take away 1s
One example with answers
Two blank examples
© 2007, 2013 QUT YuMi Deadly Centre

8. © 2007, 2013 QUT YuMi Deadly Centre
Example
= 147
+10
+10
+10
+10
+10
129
147 -1 -1 -1 -1 -1 -1 -1
+10
+10 -1 -1
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
100
110
120
130
140
150
160
170
180
190
200
Position both numbers.
Overfill the distance between the two numbers with red arcs (+10) and negative blue increments (-1).
Add up the arcs (+10) and take away the negative increments (+1).
Type the answer in the box.
© 2007, 2013 QUT YuMi Deadly Centre

9. © 2007, 2013 QUT YuMi Deadly Centre
154
136
= 154
+10
+10
+10
+10
+10 -1 -1 -1 -1 -1 -1 -1
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
100
110
120
130
140
150
160
170
180
190
200
Position both numbers.
Overfill the distance between the two numbers with red arcs (+10) and negative blue increments (-1).
Add up the arcs (+10) and take away the negative increments (+1).
Type the answer in the box.
© 2007, 2013 QUT YuMi Deadly Centre

10. © 2007, 2013 QUT YuMi Deadly Centre
133
104
= 133
+10
+10
+10
+10
+10 -1 -1 -1 -1 -1 -1 -1
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
|||||||||
100
110
120
130
140
150
160
170
180
190
200
Position both numbers.
Overfill the distance between the two numbers with red arcs (+10) and negative blue increments (-1).
Add up the arcs (+10) and take away the negative increments (+1).
Type the answer in the box.
© 2007, 2013 QUT YuMi Deadly Centre

11. © 2007, 2013 QUT YuMi Deadly Centre
More options:
Different number ranges
For example: 300 to 400, 700 to 800, 0 to 50, 0 to 500, 0 to 1000, 0 to 1 million, etc.
Different number lines
Different numbers labelled
Different increments
© 2007, 2013 QUT YuMi Deadly Centre