The average height of the students in Class 1 of six years is 1.58 meters. The average height of the boys is 1.62 meters, and the average height of the girls is 1.51 meters. How much more boys than girls are in this class?
六年一班学生的平均身高是1.58米，其中男生的平均身高是1.62米，女生的平均身高是1.51米，这个班的男生人数比女生人数多多少．
<gadget id="calculator">7 - 4</gadget>
<output>3</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(3/4) * 1</gadget>
<output>3/4 = around 0.75</output>

<result>3/4 = around 0.75</result>