Associativity

Maths

Axioms and arrays

Fill in the blank: 15 x 16 = 15 x (___ x 8)

Fill in the blank: 15 x 16 = (5 x ___) x 16

Fill in the blank in the following model to represent the calculation 4×9=9×4/ What would go in the top box?

If one yellow rod is length 3, what calculation works out the total lengths of the yellow rods?

There are 60 sweets in total. Zaki shares the sweets between 10 people. How much do they each get? Which calculation shows this problem, and is it grouping or sharing?

There are 60 sweets in total. Zaki puts the sweets into bags of 10 sweets. How many bags are there? Which calculation shows this problem, and is it grouping or sharing?

Which one of the following is commutative?

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