Question

an eye doctor keeps his contact lenses ordered from least to greatest in prescription strength. He has prescriptions for -2.5, +0.25, -1.25, -1.5, +1.25, +0.5, -2.25. In what order should the lenses be?

Answer 1

-2.5, -2.25, -1.25, -1.5, +0.25, +0.5, +1.25