Systems
A second copy must be recoverable
Work online
Type your answers and submit them to your account.
1A second copy must be recoverable - Online practice 1Open online → 2A second copy must be recoverable - Online practice 2Open online → 3A second copy must be recoverable - Online practice 3Open online → 4A second copy must be recoverable - Online practice 4Open online →Print and upload
Download a different PDF, complete it on paper and upload your work.
1A second copy must be recoverable - Paper 1View PDF worksheet → 2A second copy must be recoverable - Paper 2View PDF worksheet → 3A second copy must be recoverable - Paper 3View PDF worksheet → 4A second copy must be recoverable - Paper 4View PDF worksheet →