108 * 210 = (100 + 8)*210 = 21000 + 1680 = 22680
or, if you cannot multiply by 21,
108 * 210 = (100 + 8)*(200 + 10) = 20000 + 1000 + 1600 + 80) = 22680
22680 is the answer
108
18
(4 x 12) + (5 x 12) = 9 x 12 = 108
Using my knowledge of greatest common factors and the distributive property, I can tell that 45 + 63 is equal to 9(5 + 7) or 9 x 12, which is 108. Of course, I could also tell that from my knowledge of addition.
9(9 + 3) = (9 x 9) + (3 x 9) = 12 x 9 = 108
108 multiplied by 8.25 is 891
The distributive property states that when you have a problem, say 3(42-36) then you distribute the multiply by 3 to the 42 and -36 to get 126-108 which can be easier to solve some times. Also when you simplify problems with variables, you can substitute 5n+15 to 5(n+3).-------a(b+c) = ab+ac
108
There are two of them that do that: -108 and +108 .
108
108