Function Machines
1. For each question copy the function machine and find the input/output.
Example
Input
1
2
4
7
Output
7
10
16
25
Function
×3
+4
a)
Input
2
3
4
5
Function
Output
?
?
?
?
b)
Input
2
4
7
8
Function
Output
?
?
?
?
c)
Input
?
?
?
?
Function
Output
2
3
6
10
d)
Input
?
?
?
?
Function
Output
1
3
7
12
Function
Output
?
?
?
?
f)
Input
6
12
15
21
Function
Output
13
28
33
48
h)
Input
?
?
?
?
+5
-3
Now some harder ones...
e)
Input
1
2
4
8
g)
Input
?
?
?
?
×2
×5
+4
+3
Copyleft
ParkerMaths
×4
÷10
÷3
Function
Output
?
?
?
?
Function
Output
2
3
5
8
÷5
+4
+1
Function Machines
2. For each question copy the function machine and find the missing function.
a)
c)
Input
9
6
5
Function
Output
5
2
1
?
Function
Input
2
5
9
Output
12
15
19
?
b)
d)
Input
9
15
21
Function
Output
3
5
7
?
Function
Input
3
5
8
Output
36
60
96
?
These are harder...
e)
g)
Input
1
2
4
Input
1
2
3
?
?
Function
+7
Function
?
Output
9
11
15
Output
11
21
31
Copyleft
f)
h)
Input
6
12
18
Input
14
16
20
ParkerMaths
Function
÷2
?
Function
?
Output
1
4
7
?
Output
2
3
5
Function Machines
Copyleft
ParkerMaths