10 * 1/2 = 10/2 = 5
sum = 10 1/2 product = 5 difference = 51/2
10 * 0.5 = 5
5 is half of 10 so the answer will be half of 420, which is 210.
(1/2) + (2/5) - (1/2)(2/5) (5/10) + (4/10) - (2/10) (9/10) - (2/10) = (7/10) 7/10 = the difference
5
100
6
One-half and two.
0.5*0.5 - 0.5+0.5 = 0.25 - 1 = -0.75 = -3/4
The second is half of the first.
1/6 is half of 1/3. Therefore, the product of 300 x 1/6 (50) will be half of the product of 300 x 1/3 (100).
Make it simpler by saying that five-tenths is one-half ... so you can rewrite it as what is seven and one-half plus ten and one-half? then you add 7 + 10 = 17 and one-half + one-half = one... .17+1=18 therefore 7 and 5/10 + 10 and 1/2 = 18