A tabletop is made of two layers of plywood. The top layer is .584 inch thick. The bottom layer is .258 inch thick. What is the total thickness of the tabletop?

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To find the total thickness of the tabletop, you need to add the thicknesses of the top and bottom layers.

Given:
Thickness of the top layer = 0.584 inch
Thickness of the bottom layer = 0.258 inch

To find the total thickness, add the two values together:

Total thickness = Thickness of top layer + Thickness of bottom layer

Total thickness = 0.584 inch + 0.258 inch

To add the two decimal numbers, you can align the decimal points and then add the digits:

0.584
+ 0.258
_________
0.842

Therefore, the total thickness of the tabletop is 0.842 inch.