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Make 37

Age 7 to 14 Challenge Level:

Four bags contain a large number of $1$s, $3$s, $5$s and $7$s.

four bags containing 1s, 3s, 5s and 7s

Can you pick any ten numbers from the bags above so that their total is $37$?

Click here for a poster of this problem.

Odd and even numbers. Factors and multiples. Games. Patterned numbers. Interactivities. Creating and manipulating expressions and formulae. Visualising. Generalising. Properties of numbers. Mathematical reasoning & proof.