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苏教版教科书六年级数学下册有这样一道习题(第24页练习六第8题):广场上一根花柱的高是3.5米,底面半径是0.5米,花柱的侧面和顶面都布满塑料花。如果每平方米有42朵花,这根花柱上有多少朵花?对于这道习题,我们老师都没有在意会有什么可争议的,结果进度快一点的老师下课回到办公室就提出:学生反映这一题算出的结果是小数,是用进一法取值呢,还是用去尾法取值?如果把这根花柱的侧面和顶面分开算,那么侧面有塑料花2×3.14×0.5×3.5×42=461.58(朵),顶
Sujiao version textbook sixth grade mathematics books have such a book (page 24, Practice VI 8): a square on the style of high is 3.5 meters, the radius of the bottom is 0.5 meters, the style of the side and top are full plastic flower. If there are 42 flowers per square meter, how many flowers is on this style? For this problem, our teacher did not care what would be controversial. As a result, the teacher with faster progress returned to his office after class and said: The result of this question is decimal, is it used in a method of value, or the value of the tail method? If the style and the top side of the style of the side separately, then the plastic flowers on the side 2 × 3.14 × 0.5 × 3.5 × 42 = 461.58 (flower), top