Today I want to buy 6 basketballs and volleyballs for the school. The basketball is 42 yuan and the volleyball is 28 yuan. The total is 210 yuan. How many basketballs and volleyballs did you buy?
今天要为学校买篮球和排球共6个，篮球42元，排球28元，一共210元，篮球和排球各买了多少个？
<gadget id="calculator">6 * 28</gadget>
<output>168</output>

<gadget id="calculator">210 - 168</gadget>
<output>42</output>

<gadget id="calculator">42 - 28</gadget>
<output>14</output>

<gadget id="calculator">42 / 14</gadget>
<output>3</output>

<gadget id="calculator">6 - 3</gadget>
<output>3</output>

<result>3</result>