1. Subtraction Number Line YuMi Deadly Maths Past Project Resource
YUMI DEADLY CENTRE School of Curriculum
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Number Line
Subtraction
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YuMi Deadly Maths Past Project Resource

2. © 2007, 2013 QUT YuMi Deadly Centre
Number Line
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. Subtraction using sequencing Take away 10s then take away 1s
One example with answers
One blank example
© 2007, 2013 QUT YuMi Deadly Centre

4. © 2007, 2013 QUT YuMi Deadly Centre
Example =
113
-10
-10
-10 -1 -1 -1 -1 -1
135
-10
-10 -1 -1
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113
Answer:
100
110
120
130
140
150
160
170
180
190
200
Position the first number.
Use red arcs (-10) and blue increments (-1) to take away the second number.
Position the answer and type the answer in the box.
© 2007, 2013 QUT YuMi Deadly Centre

5. © 2007, 2013 QUT YuMi Deadly Centre=
-10
-10
-10
157 -1 -1 -1 -1 -1
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100
110
120
130
140
150
160
170
180
190
200
Answer:
Position the first number.
Use red arcs (-10) and blue increments (-1) to take away the second number.
Position the answer and type the answer in the box.
© 2007, 2013 QUT YuMi Deadly Centre

6. © 2007, 2013 QUT YuMi Deadly Centre
Subtraction using sequencing Take away 1s to make to 10, take away 10s then take away remaining 1s
One example with answers
One blank example
© 2007, 2013 QUT YuMi Deadly Centre

7. © 2007, 2013 QUT YuMi Deadly Centre=
128
Example
-10
-10
-10 -1 -1
161
-10
-10
-10 -1 -1 -1
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100
110
120
130
140
150
160
170
180
190
200
128
Answer:
Position the first number.
Use red arcs (+10) and negative blue increments (-1) to add the second number.
Position the answer and type the answer in the box.
© 2007, 2013 QUT YuMi Deadly Centre

8. © 2007, 2013 QUT YuMi Deadly Centre=
-10
-10
-10
141 -1 -1 -1 -1 -1
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100
110
120
130
140
150
160
170
180
190
200
Answer:
Position the first number.
Use red arcs (-10) and blue increments (-1) to take away the second number.
Position the answer and type the answer in the box.
© 2007, 2013 QUT YuMi Deadly Centre

9. Subtraction using compensation Take away 10s then add 1s
One example with answers
One blank example
© 2007, 2013 QUT YuMi Deadly Centre

10. © 2007, 2013 QUT YuMi Deadly Centre=
108
Example
-10 +1
126
-10
-10 +1 +1
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108
Answer:
100
110
120
130
140
150
160
170
180
190
200
Position the first number.
Use red arcs (-10) and blue increments (+1) to take away the second number.
Position the answer and type the answer in the box.
© 2007, 2013 QUT YuMi Deadly Centre

11. © 2007, 2013 QUT YuMi Deadly Centre=
-10
174 +1
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100
110
120
130
140
150
160
170
180
190
200
Answer:
Position the first number.
Use red arcs (-10) and blue increments (+1) to add the second number.
Position the answer and type the answer in the box.
© 2007, 2013 QUT YuMi Deadly Centre

12. © 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