A chef bought 0.67 kilograms of almonds and 0.18 kilograms of pecans. How many kilograms of nuts did the chef buy in all?

The chef bought 0.67 + 0.18 = <<0.67+0.18=0.85>>0.85 kilograms of nuts in total. Answer: \boxed{0.85}.

To find out how many kilograms of nuts the chef bought in all, we need to add the weight of almonds and pecans together.

The weight of almonds is 0.67 kilograms.
The weight of pecans is 0.18 kilograms.

Adding them together:

0.67 + 0.18 = 0.85

Therefore, the chef bought a total of 0.85 kilograms of nuts.

To find the total kilograms of nuts the chef bought, you need to add the weight of almonds and pecans together.

Given that the chef bought 0.67 kilograms of almonds and 0.18 kilograms of pecans, add these two numbers to get the total weight of nuts:

0.67 kilograms (almonds) + 0.18 kilograms (pecans) = 0.85 kilograms

Therefore, the chef bought a total of 0.85 kilograms of nuts.