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4.03 Number machines

Interactive practice questions

If $4$4 is put into this function machine what is the output?

The output is $\editable{}$

Easy
< 1min

If $6$6 is put into this function machine what is the output?

Easy
< 1min

If $6$6 is the output of this function machine then what is the input?

Easy
< 1min

If $7$7 is the output of this function machine then what is the input?

Easy
< 1min
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