Suppose you were trying to multiply 17 x 5 x 2. The associative property states that (17 x 5) x 2 = 17 x (5 x 2) The second one is easier to do in your head.
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you solve the problem in your head with no help from calculators or number lines ect..
please help
it can help you by couting by 2s
i dont know the ansewr im only 5 could yo help me plees
The abbucus helps people who can't use modern technology to count (add, subtract, multiply and divide).