A tree with a height of 5 meters is planted in the soil. The part exposed to the ground is 4.06 meters long. How long is the part planted in the soil?
把一颗高5米的树种入土中，露出地面的部分长4.06米，种入土中的部分长多少米？
<gadget id="calculator">5 - 4.06</gadget>
<output>0.94</output>

<result>0.94</result>