Practical depreciation problems require identifying asset type, cost, useful life, residual value, and depreciation method. Start by organizing given information: Date of acquisition, cost, expected useful life, residual/scrap value, method to use. If date is mid-year, calculate partial period depreciation carefully, noting months of ownership in first and last year. For SLM: Calculate annual depreciation, apply proportionately for partial periods. For WDV: Apply percentage to opening book value; for partial periods, apply percentage for full months only. Create depreciation schedules showing: Year, Opening Book Value, Depreciation Charge, Accumulated Depreciation, Closing Book Value. When asset is disposed before the end of useful life, calculate depreciation to disposal date, record gain or loss. Handle revaluation if mentioned: Remove old accumulated depreciation, restate asset at revalued amount. Account for assets acquired and disposed in same year carefully with partial period calculations. When multiple assets in same class, create consolidated depreciation schedule. Journal entries must clearly show depreciation for the year, accumulated depreciation adjustments, and disposal entries. Verify calculations by checking that opening plus depreciation minus disposal equals closing. Problems often test understanding of matching principle and impact on profit. Exam tip: Always create detailed schedules showing all calculations step-by-step; clearly show opening and closing positions; practice both full-year and partial-year scenarios; show all journal entries clearly.