Using the anyorder property of multiplication
The anyorder property of multiplication can be used to simplify calculations by changing the order in which we perform multiplications.
For example:

= (2 × 5) × (2 × 5) × (2 × 5) 
= 10 × 10 × 10  



Sometimes this reordering happens after we decompose one of the factors, such as when we double twice in order to multiply by four, as in
17 × 4 = (17 × 2) × 2 = 34 × 2 = 68
This technique of moving a factor from one number to another in order to simplify a calculation has applications beyond repeated doubling, as in
36 × 5 = 18 × (2 × 5) = 180.