We claim the ornamental design for a block with slots, as shown and described.
FIG. 1 is a perspective view of a block.
FIG. 2 is another perspective view of the block from the opposite perspective of the view in FIG. 1.
FIG. 3 is a top view of the block shown in FIGS. 1 and 2.
FIG. 4 is a side view of the block shown in FIGS. 1-3.
FIG. 5 is a bottom view of the block shown in FIGS. 1-4.
FIG. 6 is an end view of the block shown in FIGS. 1-5; and,
FIG. 7 is an opposite end view of the block shown in FIGS. 1-6.
The stippling and shading lines shown in the drawing(s) represent the three-dimensional contour of the design, and are not intended to indicate surface decoration.