4. Properties of Real Numbers
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390
25* 3.9* 4 We are asked to simplify this expression. We can rearrange the factors using the Commutative Property of Multiplication to simplify the calculations.
Property/Operation | Before | After |
---|---|---|
Commutative Property of Multiplication | 25 * 3.9 * 4 | 25 * 4 * 3.9 |
Associative Property of Multiplication | 25 * 4 * 3.9 | ( 25 * 4 ) * 3.9 |
Multiply | ( 25 * 4) * 3.9 | 100 * 3.9 |
Multiply | 100 * 3.9 | 390 |