The commutative property of multiplication states that changing the order of numbers does not change the result or it's value.
For example:
If 3+2=5
Then 2+3=5
In multiplication:
If 3x2=6
Then 2x3=6
There for 3x2=2x3
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The multiplication property of equality is, as the name suggests, a property. It does not require solving!
You can do the easy bits first. Thus, to calculate 7*5*2, instead of doing 35*2 = 70, you can calculate 7*10 = 70. By itself, the associative property is not as useful as it is in combination with the commutative and distributive properties.
You can change the order of the multiplicands to give an intermediate answer that is simpler to work with. For example, to calculate 25 * 45 * 40 you could do 25 * 45 = 1125 and then 1125 * 40 = 45000 Or You could do 25 * 45 * 40 = 25 * 40 * 45 = 1000 * 45 and multiplication by 1000 is simply adding three 0s zero at the end, so 45000. Easy.
5*17*2 The commutative property allows yu to swap the 17 and 2: = 5*2*17 The associative property allows you to group 5 and 2 to evaluate first = (5*2)*17 = 10*17 = 170
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