A number machine is a way of writing rules using a flow diagram. The equation \(3j - 6 = 9\) can be shown on a number machine by writing out the functions that have been applied to \(j\) in the order ...
Netizens were amused, saying it brought back memories of mugging for A. Maths in secondary school. One wrote: “Considering it is in an area in Bukit Timah where there are many tuition centres, this ...
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