With five lines between the whole numbers, each line represents 0.1667. Therefore, dots left to right are -1.5, +0.8335
As fractions: - 1-5/10 (negative one and 5 tenths) which reduces to - 1-1/2
+ 0.8335/10,000 = 1667/2000
Expressions to solve for the difference:
(1) 1.5 + 0.8335 = 2.3335
(2) 1-1/2 + 1667/2000 = 2-3335/10,000 = 2-667/2000
