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begin assert(6.0 / 2.0 = 3.0); assert(5.0 / 2.0 = 2.5); assert(3.0 * 0.5 = 1.5); assert(-3.0 + 1.0 = -2.0); assert(10.0 - 4.0 = 6.0); assert(6.0f / 2.0f = 3.0f); assert(5.0f / 2.0f = 2.5f); assert(3.0f * 0.5f = 1.5f); assert(1.0f / 4.0f = 0.25f); assert(-3.14f < 0.0f) end.