Copy – paste:
1. Select the cell or group of cell you want to copy, then using Ctrl + C (or) Edit → copy (or) copy icon.
2. Select the cells in which you want to paste, using Ctrl + V (or) Edit → paste (or) paste – icon.
Cut- paste:
1. Select the cell or group of cell you want to cut, then using Ctrl + X (or) Edit → cut (or) cut-icon.
2. Move the cell pointer to the cell in which you want to paste, using Ctrl + V (or) Edit → paste (or) paste-icon.