22a

Use inverse operations to find the input of function machines

22a Find the input of a function machine.

22a Find the input of a function, given the output.

2n: Know number bonds to 10 and 20 and convert addition facts into subtraction facts

6n: Halving and doubling numbers from 1 to 100

9n: Times table knowledge up to 10 and converting multiplication facts into division facts

15a: Evaluating the output of one-step function machines

17a: Evaluating the output of multi-step function machines

Function

Input

Output

Operation

Inverse

28a: Using a two-step formula written in words both forwards and backwards

32a: Solve equations formally by using 1/2 inverse operations

38a: Using an algebraic formula both forwards and backwards

Function machines

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