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Find a great variety of ways of asking questions which make 8.

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Sending Cards

This challenge asks you to investigate the total number of cards that would be sent if four children send one to all three others. How many would be sent if there were five children? Six?

Four Goodness Sake

Stage: 2 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3


Write down the number $4$, four times.
Put operation symbols between them so that you have a calculation.
So you might think of writing $4 \times 4 \times 4 - 4 = 60$

BUT use operations so that the answer is $12$

Now, can you redo this so that you get $15$, $16$ and $17$ for your answers?

Need more of a challenge? Try getting answers all the way from $0$ through to $10$.