Subtraction wheel

Subtraction wheel

Pencil and paper
Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
Working with Students
Further Resources
This task is about finding the missing number in subtraction equations.
Work out what you must subtract from the outside number to get each answer in the centre of the circle. Write your answers for a) - h)  in the white spaces inside the circle.
 

Task administration: 
This task is completed with pencil and paper only.
Level:
3
Curriculum info: 
Maths, Number and Algebra, Number Strategies
Keywords: 
equations, subtraction
Description of task: 
Students complete equations by subtracting given numbers on a subtraction wheel.
Learning Progression Frameworks
This resource can provide evidence of learning associated with
Additive thinking, sets 6-7
within the Mathematics Learning Progressions Frameworks.
Read more about the Learning Progressions Frameworks.
Answers/responses: 
   

Y6 (09/1998)
a)
b)
c)
d)
e)
f)
g)
h)		 8
7
13
16
40
55
19
24		 8 correct - moderate

6-7 correct - easy
Diagnostic and formative information: 
This resource can help to identify students' ability to apply additive ideas  to combine or partition whole numbers to solve subtraction problems.