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人教版《数学》四年级下册第九单元“数学广角”附有一道练习题:“一百馒头一百僧,大僧三个更无争。小僧三个分一个,大小和尚得几丁?”这道经典数学老题早在我国明代珠算家程大位的名著《算法统宗》就有记载。四百多年以来一直是人们津津乐道的趣题,如果在小学五年级以后学了解方程的方法,学生应该比较容易利用列方程的方法得到结果,可是偏偏出现在四年级下学期的教科书中。正好在本单元刚刚学习了运用“鸡兔同笼”的方法解决问题,为了让
PEP “math” fourth grade under the ninth unit “math wide angle ” with an exercise: “one hundred steamed bread one hundred monks, monks three even more indisputable .A small monk divided into three, size monk Got a few Ding? ”This classic problem of classical mathematics as early as in our country abacus Cheng Da-bit masterpiece“ algorithm UContent ”there are records. For more than four hundred years, it has always been a topic of relish. If you learn the equation method after the fifth grade in primary school, students should be able to obtain the result by using the column equation. However, they will appear in the textbook of the fourth grade next semester . Just in this unit has just learned to use “chicken rabbit with cage ” method to solve the problem, in order to