When the little sloppy calculated 2.53 plus a decimal, because he mistakenly aligned the end of the number, the result was 7.02. What should be the correct number?
小马虎在计算2.53加一个一位小数时，由于错误地把数的末尾对齐，结果得到7.02，正确的得数应当是多少？
<gadget id="calculator">7.02 - 2.53</gadget>
<output>4.49</output>

<gadget id="calculator">4.49 * 10</gadget>
<output>44.9</output>

<gadget id="calculator">2.53 + 44.9</gadget>
<output>47.43</output>

<result>47.43</result>