Let’s Practise
1 A function machine has a rule of multiply by five.
×5
The inputs and outputs are recorded in a table.
Input
1
2
3
4
Output
5
20
What two numbers are missing from the table?
A function machine has a rule of add 9. Draw a table to show the outputs for the input numbers 15–20.
2
3 Leon is making fence from posts and rails.
He wants to find a rule that tells him how many rails he needs for different number of posts. (a) Copy and complete the table.
Posts
2
3
4
5
Rails
4
(b) Use your results to predict how many rails will be needed for 10 posts.
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01/12/2021 14:56
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