200 of them.
There are ten tenths in a whole. Therefore: 10 X 2 = 20 (twenty tenths in two wholes).
18
6 wholes and 1 fifth or 6 wholes and 2 tenths.6 wholes and 1 fifth or 6 wholes and 2 tenths.6 wholes and 1 fifth or 6 wholes and 2 tenths.6 wholes and 1 fifth or 6 wholes and 2 tenths.
20
3 / 0.5 = 6
13 and 1 fifth
Ten fifths make two wholes.
2
2 ÷ 1/2 = 2 x 2/1 = 4 Alternatively: 1 whole is 2 halves → 2 wholes = 2 x 2 halves = 4 halves.
There are 21 thirds in 7 wholes.
10 / (1/2) = 10* (2/1) = 20