click below
click below
Normal Size Small Size show me how
Decimals
Term | Definition |
---|---|
Commutative Property of Multiplication | the order in which factors are multiplied does NOT change the product |
Identity Property of Multiplication | the product of any factor and 1 is equal to the factor |
Associative Property of Multiplication | the grouping of the factors does NOT change the product |
compatible numbers | numbers that are easy to multiply mentally |
powers of 10 | numbers like 10, 100, and 1,000, because they can be written with exponents |
rounding | finding the approximate value of a specific number or place value |
example of Identity Property of Multiplication | 46 x 1 = 46 |
example of Associative Property of Multiplication | (9 x 4) x 5 = 9 x (4 x 5) = 36 x 5 = 9 x 20 = 180 |
example of Commutative Property of Multiplication | 25 x 4 = 4 x 25 = 100 |
estimate | an approximate value (not an exact answer), helps you do mental math |
product | the result of a multiplication problem |