The school organized the fourth grade students to collect tree seeds. The first class collected 32.56 kilograms, the second class collected 39.49 kilograms, and the third class collected 36.44 kilograms. How many kilograms did the fourth grade collect in total?
学校组织四年级的同学采集树种子，一班采集了32.56千克，二班采集了39.49千克，三班采集了36.44千克，四年级一共采集了多少千克？
<gadget id="calculator">32.56 + 39.49 + 36.44</gadget>
<output>108.49</output>

<result>108.49</result>