The fourth grade students planted 400 trees, and the fifth grade students planted 68 fewer trees than the fourth grade. How many trees were planted in the fourth and fifth grades?
四年级同学种树400棵，五年级比四年级的2倍少68棵．四、五年级一共种树多少棵？
<gadget id="calculator">400 * 2</gadget>
<output>800</output>

<gadget id="calculator">800 - 68</gadget>
<output>732</output>

<gadget id="calculator">732 + 400</gadget>
<output>1_132</output>

<result>1_132</result>