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INPUT & OUTPUT

Discover the rule that transforms input numbers into output numbers.

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Section 1 / 3

WHAT IS A FUNCTION MACHINE?

A function machine takes a number in (input), applies a rule, and produces a number out (output). For example, Rule: +3 means every number that goes in gets 3 added. Input 5 > Output 8. Input 10 > Output 13.

Rule: +3. Input: 5 > Output: ?

1Apply the rule: 5 + 3 = 8

2Output = 8

= 8

Rule: ×2. Input: 7 > Output: ?

1Apply the rule: 7 × 2 = 14

= 14

LEADER TIP

Function machines! Numbers go in, a secret rule changes them, different numbers come out. Can you crack the code?

BEFORE THIS LESSON, TRY

🔢Number Patterns

PRACTICE WITH THESE GAMES

⚙️Number Factory �Complete the Series 🔍Find the Operation

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INPUT & OUTPUT

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