Yes.
The factors of 21 that add up to 8 are 1 and 7.
The factors of 8 are 1, 2, 4, and 8. The factors that add up to 10 are 2 and 8.
Units of measure add up to eachother. Grams add up to Ounces, and Ounces add up to pounds, ect. There are 16 ounces in 1 pound.
The 8 interior angles of an 8 sided octagon add up to 1080 degrees
An octagon is an 8 sided polygon whose 8 interior angles add up to 1080 degrees
16 ounces per pound adds up to 131 ounces in 8 pounds 3 ounces.
0.9 oz is 7.1 oz less than 8 oz
1 lb = 16 oz → 1 lb 8 oz = 1 lb + 8 oz = 16 oz + 8 oz = 24 oz.
8 fl. oz.
Factors of 250 that add up to 8 = 1 + 2 + 5
They add up to 1080 degrees