4 x 25 x 27 = (4 x 25) x 27 = 4 x (25 x 27) = (4 x 27) x 25
They all equal 2700.
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Yes. This only works for multiplication and addition.
By the associative property of multiplication. 4 * 2 * 2 = 4 * (2 * 2) = 4 * 4
(8 + 6) + 4 = 8 + (6 + 4) Since 6 + 4 = 10, the second sum may be easier than the first.
The associative property is normally invoked in the context of two (or more) occurances of a binary operation. eg (2*3)*4 = 2*(3*4). Here, you could break down 16 into 2*2*2*2 So that 16*20 = 2*2*2*2*20 which, by the ASSOCIATIVE property can also be written as 2*(2*(2*(2*20))) = 2*(2*(2*(40)) = 2*(2*80) = 2*160 = 320