1. **State the problem:** John starts with 167 marbles and gives 34 marbles to Jack. We need to find out how many marbles John has left. 2. **Formula used:** To find the remaining marbles, subtract the number given away from the original amount. $$\text{Remaining marbles} = \text{Original marbles} - \text{Marbles given away}$$ 3. **Apply the values:** $$167 - 34$$ 4. **Calculate:** $$167 - 34 = 133$$ 5. **Answer:** John has 133 marbles left after giving 34 to Jack.